Re: Low number of observations

sastuck · Posted 03-27-2018 03:08 PM

Hello,

I am working with the Execucomp database which contains annual compensation data for 74,300 of the top five executives of over 3,300 companies. After dropping all executives besides CEOs, the new number of observations is 13,678.

Additionally, I am using stock returns from Center for Research in Security Prices (CRSP) to complement the compensation data discussed above. The original dataset contained 677,216 observations.

Anyway, after using the monthly return data in the CRSP dataset, I made a annual_return variable to so that I could look at firm performance on a yearly basis (to match with CEO salaries).

After some data cleaning, the number of observations in the merged ceo_firm dataset is only 1,394. This doesn't sound right to me. Can you help me find where the data may have gone or what I need to change?

Here is my program:

libname paper "~/425/425_Final_Paper";

*import compustat dataset;
PROC IMPORT out=paper.CompuStat_Execucomp
datafile="~/425/425_Final_Paper/CompuStat_Execucomp.csv"
DBMS=CSV replace;
getnames= yes;
guessingrows=2000;
run;

*keep only CEOs;
data paper.Compustat_ExecuComp2;
set paper.Compustat_ExecuComp;
if CEOANN = 'CEO';
run;

*** extra DATA step for checking previous data step results by comparing number of records selected;
data check_CEOANN;
set paper.Compustat_ExecuComp;
if CEOANN =: 'CEO';
run;

proc sort data=paper.Compustat_ExecuComp2;
by ticker year;
run;

*import csrp dataset;
PROC IMPORT out=paper.CSRP_Monthly_Stock_char
datafile="~/425/425_Final_Paper/CSRP_MonthlyStock_char.csv"
DBMS=CSV replace;
getnames= yes;
guessingrows=max;
run;

*remove bad data; 
data paper.CSRP_Monthly_Stock_char2;
set paper.CSRP_Monthly_Stock_char;
if cusip = ' ' then delete;
if ret = . then delete;
year = int( date/10000 );
month = month(date);
if cusip =: '?' then cusip = substr(cusip, 2);
run;

proc sort data=paper.CSRP_Monthly_Stock_char2;
by ticker year;
run;

*find additional bad data: tickers with 2 CEO records for the same year;
proc freq data=paper.Compustat_ExecuComp2;
tables ticker * year / noprint out=paper.multiple_ceos (where=(count > 1));
run;

*Remove all bad years from both data sources;
data paper.Compustat_ExecuComp3;
merge paper.Compustat_ExecuComp2 
paper.multiple_CEOs (keep=ticker year in=had_multiple_CEOs);
by ticker year;
if had_multiple_CEOs then delete;
run;

data paper.CSRP_Monthly_Stock_char3;
merge paper.CSRP_Monthly_Stock_char2
paper.multiple_CEOs (keep=ticker year in=had_multiple_CEOs);
by ticker year;
if had_multiple_CEOs then delete;
run;

*find additional bad data: multiple return records for the same month/year;
proc freq data=paper.CSRP_Monthly_Stock_char3;
tables ticker * year * month / noprint out=paper.multiple_returns;
run;

*Remove all matching year data for multiple returns;
proc sort data=paper.multiple_returns out=multiple_returns (keep=ticker year) NODUPKEY;
by ticker year;
run;

data paper.Compustat_ExecuComp4;
merge paper.Compustat_ExecuComp3
multiple_returns (in=had_multiple_returns);
by ticker year;
if had_multiple_returns then delete;
run;

data paper.CSRP_Monthly_Stock_char4;
merge paper.CSRP_Monthly_Stock_char3
multiple_returns (in=had_multiple_returns);
by ticker year;
if had_multiple_returns then delete;
run;

*create new variable annualized growth;
data paper.CSRP_annual_returns;
set paper.CSRP_Monthly_Stock_char4;
by ticker year;
retain annual_return 1;
annual_return = annual_return * (1 + RET);
if month = 12 or last.ticker;
annual_return = (annual_return - 1) * 100;
output;
annual_return = 1;
keep ticker year annual_return;
run;

*use proc contents to see if there is a type mismatch;
proc contents 
data=paper.annual_returns;
run;

proc contents 
data=paper.Compustat_ExecuComp4;
run;

*Merge CEO data and firm data by year. Use CUSIP from CEO data; 
DATA paper.ceo_firm ; 
length ticker $5;
MERGE paper.CSRP_annual_returns 
paper.compustat_execucomp4; 
BY ticker; 
RUN;

proc contents 
data=paper.ceo_firm;
run;

*remove missing return data; 
data paper.ceo_firm;
set paper.ceo_firm;
if annual_return = . then delete;
run;

And here is the log:

1          OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 70         
 71         libname paper "~/425/425_Final_Paper";
 NOTE: Libref PAPER was successfully assigned as follows: 
       Engine:        V9 
       Physical Name: /home/apmorabito0/425/425_Final_Paper
 72         
 73         *import compustat dataset;
 74         PROC IMPORT out=paper.CompuStat_Execucomp
 75         datafile="~/425/425_Final_Paper/CompuStat_Execucomp.csv"
 76         DBMS=CSV replace;
 77         getnames= yes;
 78         guessingrows=2000;
 79         run;
 
 NOTE: Unable to open parameter catalog: SASUSER.PARMS.PARMS.SLIST in update mode. Temporary parameter values will be saved to 
 WORK.PARMS.PARMS.SLIST.
 80          /**********************************************************************
 81          *   PRODUCT:   SAS
 82          *   VERSION:   9.4
 83          *   CREATOR:   External File Interface
 84          *   DATE:      27MAR18
 85          *   DESC:      Generated SAS Datastep Code
 86          *   TEMPLATE SOURCE:  (None Specified.)
 87          ***********************************************************************/
 88             data PAPER.COMPUSTAT_EXECUCOMP    ;
 89             %let _EFIERR_ = 0; /* set the ERROR detection macro variable */
 90             infile '~/425/425_Final_Paper/CompuStat_Execucomp.csv' delimiter = ',' MISSOVER DSD lrecl=32767 firstobs=2 ;
 91                informat EXEC_FULLNAME $614. ;
 92                informat CFOANN $7. ;
 93                informat EXECDIR $2. ;
 94                informat OLD_DATAFMT_FLAG $4. ;
 95                informat INTERLOCK $3. ;
 96                informat REPRICE best32. ;
 97                informat EXECRANK $8. ;
 98                informat CO_PER_ROL $5. ;
 99                informat CONAME $34. ;
 100               informat TITLEANN $246. ;
 101               informat CEOANN $3. ;
 102               informat SALARY best32. ;
 103               informat BONUS $12. ;
 104               informat STOCK_AWARDS $30. ;
 105               informat OPTION_AWARDS $52. ;
 106               informat NONEQ_INCENT $37. ;
 107               informat PENSION_CHG $9. ;
 108               informat OTHCOMP $9. ;
 109               informat TOTAL_SEC best32. ;
 110               informat TOTAL_CURR best32. ;
 111               informat TOTAL_ALT1 best32. ;
 112               informat TOTAL_ALT2 best32. ;
 113               informat TERM_PYMT best32. ;
 114               informat CHG_CTRL_PYMT best32. ;
 115               informat SHROWN_TOT best32. ;
 116               informat SHROWN_TOT_PCT best32. ;
 117               informat SHROWN_EXCL_OPTS best32. ;
 118               informat SHROWN_EXCL_OPTS_PCT best32. ;
 119               informat OPT_EXER_NUM best32. ;
 120               informat OPT_EXER_VAL best32. ;
 121               informat SHRS_VEST_NUM best32. ;
 122               informat SHRS_VEST_VAL best32. ;
 123               informat AGE best32. ;
 124               informat OPTION_AWARDS_NUM best32. ;
 125               informat OPTION_AWARDS_FV best32. ;
 126               informat STOCK_AWARDS_FV best32. ;
 127               informat OPT_UNEX_EXER_NUM best32. ;
 128               informat OPT_UNEX_UNEXER_NUM best32. ;
 129               informat OPT_UNEX_EXER_EST_VAL best32. ;
 130               informat OPT_UNEX_UNEXER_EST_VAL best32. ;
 131               informat STOCK_UNVEST_NUM best32. ;
 132               informat STOCK_UNVEST_VAL best32. ;
 133               informat EIP_UNEARN_NUM best32. ;
 134               informat EIP_UNEARN_VAL best32. ;
 135               informat PENSION_VALUE_TOT best32. ;
 136               informat PENSION_PYMTS_TOT best32. ;
 137               informat DEFER_CONTRIB_EXEC_TOT best32. ;
 138               informat DEFER_CONTRIB_CO_TOT best32. ;
 139               informat DEFER_EARNINGS_TOT best32. ;
 140               informat DEFER_WITHDR_TOT best32. ;
 141               informat DEFER_BALANCE_TOT best32. ;
 142               informat DEFER_RPT_AS_COMP_TOT best32. ;
 143               informat EXECRANKANN best32. ;
 144               informat OTHANN $1. ;
 145               informat TDC1 best32. ;
 146               informat TDC2 best32. ;
 147               informat RSTKGRNT $1. ;
 148               informat OPTION_AWARDS_BLK_VALUE $1. ;
 149               informat OPTION_AWARDS_RPT_VALUE $1. ;
 150               informat LTIP $1. ;
 151               informat ALLOTHTOT $1. ;
 152               informat ALLOTHPD $1. ;
 153               informat SAL_PCT best32. ;
 154               informat TOTAL_CURR_PCT best32. ;
 155               informat TOTAL_SEC_PCT best32. ;
 156               informat TOTAL_ALT1_PCT best32. ;
 157               informat TOTAL_ALT2_PCT best32. ;
 158               informat TDC1_PCT best32. ;
 159               informat TDC2_PCT best32. ;
 160               informat RET_YRS $1. ;
 161               informat COMMENT $1. ;
 162               informat GVKEY best32. ;
 163               informat EXECID best32. ;
 164               informat YEAR best32. ;
 165               informat RSTKVYRS $1. ;
 166               informat BECAMECEO best32. ;
 167               informat JOINED_CO best32. ;
 168               informat REJOIN $1. ;
 169               informat LEFTOFC best32. ;
 170               informat LEFTCO best32. ;
 171               informat RELEFT $1. ;
 172               informat PCEO $3. ;
 173               informat PCFO $3. ;
 174               informat TITLE $215. ;
 175               informat REASON $7. ;
 176               informat EXEC_LNAME $22. ;
 177               informat EXEC_FNAME $12. ;
 178               informat EXEC_MNAME $9. ;
 179               informat GENDER $6. ;
 180               informat NAMEPREFIX $3. ;
 181               informat PAGE best32. ;
 182               informat CUSIP $8. ;
 183               informat EXCHANGE $3. ;
 184               informat ADDRESS $41. ;
 185               informat CITY $15. ;
 186               informat STATE $2. ;
 187               informat ZIP $5. ;
 188               informat TELE $14. ;
 189               informat SICDESC $30. ;
 190               informat NAICSDESC $52. ;
 191               informat INDDESC $44. ;
 192               informat SPCODE $2. ;
 193               informat TICKER $5. ;
 194               informat SUB_TELE best32. ;
 195               informat NAICS best32. ;
 196               informat SPINDEX best32. ;
 197               informat SIC best32. ;
 198               format EXEC_FULLNAME $614. ;
 199               format CFOANN $7. ;
 200               format EXECDIR $2. ;
 201               format OLD_DATAFMT_FLAG $4. ;
 202               format INTERLOCK $3. ;
 203               format REPRICE best12. ;
 204               format EXECRANK $8. ;
 205               format CO_PER_ROL $5. ;
 206               format CONAME $34. ;
 207               format TITLEANN $246. ;
 208               format CEOANN $3. ;
 209               format SALARY best12. ;
 210               format BONUS $12. ;
 211               format STOCK_AWARDS $30. ;
 212               format OPTION_AWARDS $52. ;
 213               format NONEQ_INCENT $37. ;
 214               format PENSION_CHG $9. ;
 215               format OTHCOMP $9. ;
 216               format TOTAL_SEC best12. ;
 217               format TOTAL_CURR best12. ;
 218               format TOTAL_ALT1 best12. ;
 219               format TOTAL_ALT2 best12. ;
 220               format TERM_PYMT best12. ;
 221               format CHG_CTRL_PYMT best12. ;
 222               format SHROWN_TOT best12. ;
 223               format SHROWN_TOT_PCT best12. ;
 224               format SHROWN_EXCL_OPTS best12. ;
 225               format SHROWN_EXCL_OPTS_PCT best12. ;
 226               format OPT_EXER_NUM best12. ;
 227               format OPT_EXER_VAL best12. ;
 228               format SHRS_VEST_NUM best12. ;
 229               format SHRS_VEST_VAL best12. ;
 230               format AGE best12. ;
 231               format OPTION_AWARDS_NUM best12. ;
 232               format OPTION_AWARDS_FV best12. ;
 233               format STOCK_AWARDS_FV best12. ;
 234               format OPT_UNEX_EXER_NUM best12. ;
 235               format OPT_UNEX_UNEXER_NUM best12. ;
 236               format OPT_UNEX_EXER_EST_VAL best12. ;
 237               format OPT_UNEX_UNEXER_EST_VAL best12. ;
 238               format STOCK_UNVEST_NUM best12. ;
 239               format STOCK_UNVEST_VAL best12. ;
 240               format EIP_UNEARN_NUM best12. ;
 241               format EIP_UNEARN_VAL best12. ;
 242               format PENSION_VALUE_TOT best12. ;
 243               format PENSION_PYMTS_TOT best12. ;
 244               format DEFER_CONTRIB_EXEC_TOT best12. ;
 245               format DEFER_CONTRIB_CO_TOT best12. ;
 246               format DEFER_EARNINGS_TOT best12. ;
 247               format DEFER_WITHDR_TOT best12. ;
 248               format DEFER_BALANCE_TOT best12. ;
 249               format DEFER_RPT_AS_COMP_TOT best12. ;
 250               format EXECRANKANN best12. ;
 251               format OTHANN $1. ;
 252               format TDC1 best12. ;
 253               format TDC2 best12. ;
 254               format RSTKGRNT $1. ;
 255               format OPTION_AWARDS_BLK_VALUE $1. ;
 256               format OPTION_AWARDS_RPT_VALUE $1. ;
 257               format LTIP $1. ;
 258               format ALLOTHTOT $1. ;
 259               format ALLOTHPD $1. ;
 260               format SAL_PCT best12. ;
 261               format TOTAL_CURR_PCT best12. ;
 262               format TOTAL_SEC_PCT best12. ;
 263               format TOTAL_ALT1_PCT best12. ;
 264               format TOTAL_ALT2_PCT best12. ;
 265               format TDC1_PCT best12. ;
 266               format TDC2_PCT best12. ;
 267               format RET_YRS $1. ;
 268               format COMMENT $1. ;
 269               format GVKEY best12. ;
 270               format EXECID best12. ;
 271               format YEAR best12. ;
 272               format RSTKVYRS $1. ;
 273               format BECAMECEO best12. ;
 274               format JOINED_CO best12. ;
 275               format REJOIN $1. ;
 276               format LEFTOFC best12. ;
 277               format LEFTCO best12. ;
 278               format RELEFT $1. ;
 279               format PCEO $3. ;
 280               format PCFO $3. ;
 281               format TITLE $215. ;
 282               format REASON $7. ;
 283               format EXEC_LNAME $22. ;
 284               format EXEC_FNAME $12. ;
 285               format EXEC_MNAME $9. ;
 286               format GENDER $6. ;
 287               format NAMEPREFIX $3. ;
 288               format PAGE best12. ;
 289               format CUSIP $8. ;
 290               format EXCHANGE $3. ;
 291               format ADDRESS $41. ;
 292               format CITY $15. ;
 293               format STATE $2. ;
 294               format ZIP $5. ;
 295               format TELE $14. ;
 296               format SICDESC $30. ;
 297               format NAICSDESC $52. ;
 298               format INDDESC $44. ;
 299               format SPCODE $2. ;
 300               format TICKER $5. ;
 301               format SUB_TELE best12. ;
 302               format NAICS best12. ;
 303               format SPINDEX best12. ;
 304               format SIC best12. ;
 305            input
 306                        EXEC_FULLNAME  $
 307                        CFOANN  $
 308                        EXECDIR  $
 309                        OLD_DATAFMT_FLAG  $
 310                        INTERLOCK  $
 311                        REPRICE
 312                        EXECRANK  $
 313                        CO_PER_ROL  $
 314                        CONAME  $
 315                        TITLEANN  $
 316                        CEOANN  $
 317                        SALARY
 318                        BONUS  $
 319                        STOCK_AWARDS  $
 320                        OPTION_AWARDS  $
 321                        NONEQ_INCENT  $
 322                        PENSION_CHG  $
 323                        OTHCOMP  $
 324                        TOTAL_SEC
 325                        TOTAL_CURR
 326                        TOTAL_ALT1
 327                        TOTAL_ALT2
 328                        TERM_PYMT
 329                        CHG_CTRL_PYMT
 330                        SHROWN_TOT
 331                        SHROWN_TOT_PCT
 332                        SHROWN_EXCL_OPTS
 333                        SHROWN_EXCL_OPTS_PCT
 334                        OPT_EXER_NUM
 335                        OPT_EXER_VAL
 336                        SHRS_VEST_NUM
 337                        SHRS_VEST_VAL
 338                        AGE
 339                        OPTION_AWARDS_NUM
 340                        OPTION_AWARDS_FV
 341                        STOCK_AWARDS_FV
 342                        OPT_UNEX_EXER_NUM
 343                        OPT_UNEX_UNEXER_NUM
 344                        OPT_UNEX_EXER_EST_VAL
 345                        OPT_UNEX_UNEXER_EST_VAL
 346                        STOCK_UNVEST_NUM
 347                        STOCK_UNVEST_VAL
 348                        EIP_UNEARN_NUM
 349                        EIP_UNEARN_VAL
 350                        PENSION_VALUE_TOT
 351                        PENSION_PYMTS_TOT
 352                        DEFER_CONTRIB_EXEC_TOT
 353                        DEFER_CONTRIB_CO_TOT
 354                        DEFER_EARNINGS_TOT
 355                        DEFER_WITHDR_TOT
 356                        DEFER_BALANCE_TOT
 357                        DEFER_RPT_AS_COMP_TOT
 358                        EXECRANKANN
 359                        OTHANN  $
 360                        TDC1
 361                        TDC2
 362                        RSTKGRNT  $
 363                        OPTION_AWARDS_BLK_VALUE  $
 364                        OPTION_AWARDS_RPT_VALUE  $
 365                        LTIP  $
 366                        ALLOTHTOT  $
 367                        ALLOTHPD  $
 368                        SAL_PCT
 369                        TOTAL_CURR_PCT
 370                        TOTAL_SEC_PCT
 371                        TOTAL_ALT1_PCT
 372                        TOTAL_ALT2_PCT
 373                        TDC1_PCT
 374                        TDC2_PCT
 375                        RET_YRS  $
 376                        COMMENT  $
 377                        GVKEY
 378                        EXECID
 379                        YEAR
 380                        RSTKVYRS  $
 381                        BECAMECEO
 382                        JOINED_CO
 383                        REJOIN  $
 384                        LEFTOFC
 385                        LEFTCO
 386                        RELEFT  $
 387                        PCEO  $
 388                        PCFO  $
 389                        TITLE  $
 390                        REASON  $
 391                        EXEC_LNAME  $
 392                        EXEC_FNAME  $
 393                        EXEC_MNAME  $
 394                        GENDER  $
 395                        NAMEPREFIX  $
 396                        PAGE
 397                        CUSIP  $
 398                        EXCHANGE  $
 399                        ADDRESS  $
 400                        CITY  $
 401                        STATE  $
 402                        ZIP  $
 403                        TELE  $
 404                        SICDESC  $
 405                        NAICSDESC  $
 406                        INDDESC  $
 407                        SPCODE  $
 408                        TICKER  $
 409                        SUB_TELE
 410                        NAICS
 411                        SPINDEX
 412                        SIC
 413            ;
 414            if _ERROR_ then call symputx('_EFIERR_',1);  /* set ERROR detection macro variable */
 415            run;
 
 NOTE: The infile '~/425/425_Final_Paper/CompuStat_Execucomp.csv' is:
       Filename=/home/apmorabito0/425/425_Final_Paper/CompuStat_Execucomp.csv,
       Owner Name=apmorabito0,Group Name=oda,
       Access Permission=-rw-r--r--,
       Last Modified=03Mar2018:03:40:25,
       File Size (bytes)=50937550
 
 NOTE: 74300 records were read from the infile '~/425/425_Final_Paper/CompuStat_Execucomp.csv'.
       The minimum record length was 299.
       The maximum record length was 1177.
 NOTE: The data set PAPER.COMPUSTAT_EXECUCOMP has 74300 observations and 107 variables.
 NOTE: DATA statement used (Total process time):
       real time           1.12 seconds
       user cpu time       0.59 seconds
       system cpu time     0.14 seconds
       memory              15001.71k
       OS Memory           46632.00k
       Timestamp           03/27/2018 06:53:28 PM
       Step Count                        82  Switch Count  1
       Page Faults                       0
       Page Reclaims                     315
       Page Swaps                        0
       Voluntary Context Switches        4960
       Involuntary Context Switches      7
       Block Input Operations            0
       Block Output Operations           302088
       
 
 74300 rows created in PAPER.COMPUSTAT_EXECUCOMP from ~/425/425_Final_Paper/CompuStat_Execucomp.csv.
   
   
   
 NOTE: PAPER.COMPUSTAT_EXECUCOMP data set was successfully created.
 NOTE: The data set PAPER.COMPUSTAT_EXECUCOMP has 74300 observations and 107 variables.
 NOTE: PROCEDURE IMPORT used (Total process time):
       real time           6.09 seconds
       user cpu time       5.52 seconds
       system cpu time     0.18 seconds
       memory              15001.71k
       OS Memory           47404.00k
       Timestamp           03/27/2018 06:53:28 PM
       Step Count                        82  Switch Count  7
       Page Faults                       0
       Page Reclaims                     6732
       Page Swaps                        0
       Voluntary Context Switches        5034
       Involuntary Context Switches      11
       Block Input Operations            288
       Block Output Operations           302152
       
 
 416        
 417        *keep only CEOs;
 418        data paper.Compustat_ExecuComp2;
 419        set paper.Compustat_ExecuComp;
 420        if CEOANN = 'CEO';
 421        run;
 
 NOTE: There were 74300 observations read from the data set PAPER.COMPUSTAT_EXECUCOMP.
 NOTE: The data set PAPER.COMPUSTAT_EXECUCOMP2 has 13678 observations and 107 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.30 seconds
       user cpu time       0.07 seconds
       system cpu time     0.06 seconds
       memory              3630.43k
       OS Memory           38324.00k
       Timestamp           03/27/2018 06:53:28 PM
       Step Count                        83  Switch Count  1
       Page Faults                       0
       Page Reclaims                     508
       Page Swaps                        0
       Voluntary Context Switches        3425
       Involuntary Context Switches      2
       Block Input Operations            301824
       Block Output Operations           55824
       
 
 422        
 423        *** extra DATA step for checking previous data step results by comparing number of records selected;
 424        data check_CEOANN;
 425        set paper.Compustat_ExecuComp;
 426        if CEOANN =: 'CEO';
 427        run;
 
 NOTE: There were 74300 observations read from the data set PAPER.COMPUSTAT_EXECUCOMP.
 NOTE: The data set WORK.CHECK_CEOANN has 13678 observations and 107 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.07 seconds
       user cpu time       0.02 seconds
       system cpu time     0.07 seconds
       memory              3630.50k
       OS Memory           38324.00k
       Timestamp           03/27/2018 06:53:28 PM
       Step Count                        84  Switch Count  1
       Page Faults                       0
       Page Reclaims                     499
       Page Swaps                        0
       Voluntary Context Switches        10
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           55816
       
 
 428        
 429        proc sort data=paper.Compustat_ExecuComp2;
 430        by ticker year;
 431        run;
 
 NOTE: There were 13678 observations read from the data set PAPER.COMPUSTAT_EXECUCOMP2.
 NOTE: The data set PAPER.COMPUSTAT_EXECUCOMP2 has 13678 observations and 107 variables.
 NOTE: PROCEDURE SORT used (Total process time):
       real time           0.15 seconds
       user cpu time       0.03 seconds
       system cpu time     0.05 seconds
       memory              31300.40k
       OS Memory           65580.00k
       Timestamp           03/27/2018 06:53:28 PM
       Step Count                        85  Switch Count  1
       Page Faults                       0
       Page Reclaims                     7358
       Page Swaps                        0
       Voluntary Context Switches        1221
       Involuntary Context Switches      1
       Block Input Operations            55840
       Block Output Operations           55816
       
 
 432        
 433        *import csrp dataset;
 434        PROC IMPORT out=paper.CSRP_Monthly_Stock_char
 435        datafile="~/425/425_Final_Paper/CSRP_MonthlyStock_char.csv"
 436        DBMS=CSV replace;
 437        getnames= yes;
 438        guessingrows=max;
 439        run;
 
 NOTE: Unable to open parameter catalog: SASUSER.PARMS.PARMS.SLIST in update mode. Temporary parameter values will be saved to 
 WORK.PARMS.PARMS.SLIST.
 440         /**********************************************************************
 441         *   PRODUCT:   SAS
 442         *   VERSION:   9.4
 443         *   CREATOR:   External File Interface
 444         *   DATE:      27MAR18
 445         *   DESC:      Generated SAS Datastep Code
 446         *   TEMPLATE SOURCE:  (None Specified.)
 447         ***********************************************************************/
 448            data PAPER.CSRP_MONTHLY_STOCK_CHAR    ;
 449            %let _EFIERR_ = 0; /* set the ERROR detection macro variable */
 450            infile '~/425/425_Final_Paper/CSRP_MonthlyStock_char.csv' delimiter = ',' MISSOVER DSD lrecl=32767 firstobs=2 ;
 451               informat PERMNO best32. ;
 452               informat date best32. ;
 453               informat NAMEENDT best32. ;
 454               informat SHRCD best32. ;
 455               informat EXCHCD best32. ;
 456               informat SICCD $4. ;
 457               informat NCUSIP $8. ;
 458               informat TICKER $5. ;
 459               informat COMNAM $32. ;
 460               informat SHRCLS $1. ;
 461               informat TSYMBOL $5. ;
 462               informat NAICS best32. ;
 463               informat PRIMEXCH $1. ;
 464               informat TRDSTAT $1. ;
 465               informat SECSTAT $1. ;
 466               informat PERMCO best32. ;
 467               informat ISSUNO best32. ;
 468               informat HEXCD best32. ;
 469               informat HSICCD $4. ;
 470               informat CUSIP $9. ;
 471               informat DCLRDT best32. ;
 472               informat DLAMT best32. ;
 473               informat DLPDT best32. ;
 474               informat DLSTCD best32. ;
 475               informat NEXTDT best32. ;
 476               informat PAYDT best32. ;
 477               informat RCRDDT best32. ;
 478               informat SHRFLG best32. ;
 479               informat HSICMG best32. ;
 480               informat HSICIG best32. ;
 481               informat DISTCD best32. ;
 482               informat DIVAMT best32. ;
 483               informat FACPR best32. ;
 484               informat FACSHR best32. ;
 485               informat ACPERM best32. ;
 486               informat ACCOMP best32. ;
 487               informat SHRENDDT best32. ;
 488               informat NWPERM best32. ;
 489               informat DLRETX $9. ;
 490               informat DLPRC best32. ;
 491               informat DLRET $9. ;
 492               informat TRTSCD best32. ;
 493               informat NMSIND best32. ;
 494               informat MMCNT best32. ;
 495               informat NSDINX best32. ;
 496               informat BIDLO best32. ;
 497               informat ASKHI best32. ;
 498               informat PRC best32. ;
 499               informat VOL best32. ;
 500               informat RET $9. ;
 501               informat BID best32. ;
 502               informat ASK best32. ;
 503               informat SHROUT best32. ;
 504               informat CFACPR best32. ;
 505               informat CFACSHR best32. ;
 506               informat ALTPRC best32. ;
 507               informat SPREAD best32. ;
 508               informat ALTPRCDT best32. ;
 509               informat RETX $9. ;
 510               informat vwretd best32. ;
 511               informat vwretx best32. ;
 512               informat ewretd best32. ;
 513               informat ewretx best32. ;
 514               informat sprtrn best32. ;
 515               format PERMNO best12. ;
 516               format date best12. ;
 517               format NAMEENDT best12. ;
 518               format SHRCD best12. ;
 519               format EXCHCD best12. ;
 520               format SICCD $4. ;
 521               format NCUSIP $8. ;
 522               format TICKER $5. ;
 523               format COMNAM $32. ;
 524               format SHRCLS $1. ;
 525               format TSYMBOL $5. ;
 526               format NAICS best12. ;
 527               format PRIMEXCH $1. ;
 528               format TRDSTAT $1. ;
 529               format SECSTAT $1. ;
 530               format PERMCO best12. ;
 531               format ISSUNO best12. ;
 532               format HEXCD best12. ;
 533               format HSICCD $4. ;
 534               format CUSIP $9. ;
 535               format DCLRDT best12. ;
 536               format DLAMT best12. ;
 537               format DLPDT best12. ;
 538               format DLSTCD best12. ;
 539               format NEXTDT best12. ;
 540               format PAYDT best12. ;
 541               format RCRDDT best12. ;
 542               format SHRFLG best12. ;
 543               format HSICMG best12. ;
 544               format HSICIG best12. ;
 545               format DISTCD best12. ;
 546               format DIVAMT best12. ;
 547               format FACPR best12. ;
 548               format FACSHR best12. ;
 549               format ACPERM best12. ;
 550               format ACCOMP best12. ;
 551               format SHRENDDT best12. ;
 552               format NWPERM best12. ;
 553               format DLRETX $9. ;
 554               format DLPRC best12. ;
 555               format DLRET $9. ;
 556               format TRTSCD best12. ;
 557               format NMSIND best12. ;
 558               format MMCNT best12. ;
 559               format NSDINX best12. ;
 560               format BIDLO best12. ;
 561               format ASKHI best12. ;
 562               format PRC best12. ;
 563               format VOL best12. ;
 564               format RET $9. ;
 565               format BID best12. ;
 566               format ASK best12. ;
 567               format SHROUT best12. ;
 568               format CFACPR best12. ;
 569               format CFACSHR best12. ;
 570               format ALTPRC best12. ;
 571               format SPREAD best12. ;
 572               format ALTPRCDT best12. ;
 573               format RETX $9. ;
 574               format vwretd best12. ;
 575               format vwretx best12. ;
 576               format ewretd best12. ;
 577               format ewretx best12. ;
 578               format sprtrn best12. ;
 579            input
 580                        PERMNO
 581                        date
 582                        NAMEENDT
 583                        SHRCD
 584                        EXCHCD
 585                        SICCD  $
 586                        NCUSIP  $
 587                        TICKER  $
 588                        COMNAM  $
 589                        SHRCLS  $
 590                        TSYMBOL  $
 591                        NAICS
 592                        PRIMEXCH  $
 593                        TRDSTAT  $
 594                        SECSTAT  $
 595                        PERMCO
 596                        ISSUNO
 597                        HEXCD
 598                        HSICCD  $
 599                        CUSIP  $
 600                        DCLRDT
 601                        DLAMT
 602                        DLPDT
 603                        DLSTCD
 604                        NEXTDT
 605                        PAYDT
 606                        RCRDDT
 607                        SHRFLG
 608                        HSICMG
 609                        HSICIG
 610                        DISTCD
 611                        DIVAMT
 612                        FACPR
 613                        FACSHR
 614                        ACPERM
 615                        ACCOMP
 616                        SHRENDDT
 617                        NWPERM
 618                        DLRETX  $
 619                        DLPRC
 620                        DLRET  $
 621                        TRTSCD
 622                        NMSIND
 623                        MMCNT
 624                        NSDINX
 625                        BIDLO
 626                        ASKHI
 627                        PRC
 628                        VOL
 629                        RET  $
 630                        BID
 631                        ASK
 632                        SHROUT
 633                        CFACPR
 634                        CFACSHR
 635                        ALTPRC
 636                        SPREAD
 637                        ALTPRCDT
 638                        RETX  $
 639                        vwretd
 640                        vwretx
 641                        ewretd
 642                        ewretx
 643                        sprtrn
 644            ;
 645            if _ERROR_ then call symputx('_EFIERR_',1);  /* set ERROR detection macro variable */
 646            run;
 
 NOTE: The infile '~/425/425_Final_Paper/CSRP_MonthlyStock_char.csv' is:
       Filename=/home/apmorabito0/425/425_Final_Paper/CSRP_MonthlyStock_char.csv,
       Owner Name=apmorabito0,Group Name=oda,
       Access Permission=-rw-r--r--,
       Last Modified=20Mar2018:13:42:27,
       File Size (bytes)=185718029
 
 NOTE: 677216 records were read from the infile '~/425/425_Final_Paper/CSRP_MonthlyStock_char.csv'.
       The minimum record length was 140.
       The maximum record length was 354.
 NOTE: The data set PAPER.CSRP_MONTHLY_STOCK_CHAR has 677216 observations and 64 variables.
 NOTE: DATA statement used (Total process time):
       real time           5.18 seconds
       user cpu time       2.53 seconds
       system cpu time     0.28 seconds
       memory              14793.71k
       OS Memory           46408.00k
       Timestamp           03/27/2018 07:06:56 PM
       Step Count                        86  Switch Count  1
       Page Faults                       0
       Page Reclaims                     277
       Page Swaps                        0
       Voluntary Context Switches        11448
       Involuntary Context Switches      16
       Block Input Operations            0
       Block Output Operations           669448
       
 
 677216 rows created in PAPER.CSRP_MONTHLY_STOCK_CHAR from ~/425/425_Final_Paper/CSRP_MonthlyStock_char.csv.
   
   
   
 NOTE: PAPER.CSRP_MONTHLY_STOCK_CHAR data set was successfully created.
 NOTE: The data set PAPER.CSRP_MONTHLY_STOCK_CHAR has 677216 observations and 64 variables.
 NOTE: PROCEDURE IMPORT used (Total process time):
       real time           13:28.11
       user cpu time       13:23.77
       system cpu time     1.92 seconds
       memory              14793.71k
       OS Memory           47180.00k
       Timestamp           03/27/2018 07:06:57 PM
       Step Count                        86  Switch Count  8
       Page Faults                       0
       Page Reclaims                     93428
       Page Swaps                        0
       Voluntary Context Switches        11568
       Involuntary Context Switches      891
       Block Input Operations            288
       Block Output Operations           669528
       
 
 647        
 648        *remove bad data;
 649        data paper.CSRP_Monthly_Stock_char2;
 650        set paper.CSRP_Monthly_Stock_char;
 651        if cusip = ' ' then delete;
 652        if ret = . then delete;
 653        year = int( date/10000 );
 654        month = month(date);
 655        if cusip =: '?' then cusip = substr(cusip, 2);
 656        run;
 
 NOTE: Character values have been converted to numeric values at the places given by: (Line):(Column).
       652:4   
 NOTE: Invalid argument to function MONTH(20100129) at line 654 column 9.
 PERMNO=10001 date=20100129 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20091216
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100129 RCRDDT=20100115 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100225 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=9.86
 ASKHI=10.5 PRC=10.06 VOL=3104 RET=-0.018932 BID=10.06 ASK=10.15 SHROUT=4361 CFACPR=1 CFACSHR=1 ALTPRC=10.06 SPREAD=.
 ALTPRCDT=20100129 RETX=-0.023301 vwretd=-0.037096 vwretx=-0.038109 ewretd=-0.011388 ewretx=-0.012292 sprtrn=-0.036974 year=2010
 month=. _ERROR_=1 _N_=1
 NOTE: Invalid argument to function MONTH(20100226) at line 654 column 9.
 PERMNO=10001 date=20100226 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100128
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100226 RCRDDT=20100215 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100330 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=9.92
 ASKHI=10.2201 PRC=10.0084 VOL=1510 RET=-0.000656 BID=10 ASK=10.04 SHROUT=4361 CFACPR=1 CFACSHR=1 ALTPRC=10.0084 SPREAD=.
 ALTPRCDT=20100226 RETX=-0.005129 vwretd=0.034774 vwretx=0.032688 ewretd=0.033603 ewretx=0.032232 sprtrn=0.028514 year=2010 month=.
 _ERROR_=1 _N_=2
 NOTE: Invalid argument to function MONTH(20100331) at line 654 column 9.
 PERMNO=10001 date=20100331 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100302
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100331 RCRDDT=20100315 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100429 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=9.91
 ASKHI=10.18 PRC=10.17 VOL=2283 RET=0.020643 BID=10.17 ASK=10.23 SHROUT=4361 CFACPR=1 CFACSHR=1 ALTPRC=10.17 SPREAD=.
 ALTPRCDT=20100331 RETX=0.016146 vwretd=0.063606 vwretx=0.06192 ewretd=0.069289 ewretx=0.067252 sprtrn=0.058796 year=2010 month=.
 _ERROR_=1 _N_=3
 NOTE: Invalid argument to function MONTH(20100430) at line 654 column 9.
 PERMNO=10001 date=20100430 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100331
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100430 RCRDDT=20100415 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100527 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.25
 ASKHI=11.61 PRC=11.39 VOL=3350 RET=0.124385 BID=11.57 ASK=11.65 SHROUT=6070 CFACPR=1 CFACSHR=1 ALTPRC=11.39 SPREAD=.
 ALTPRCDT=20100430 RETX=0.119961 vwretd=0.020043 vwretx=0.01893 ewretd=0.057843 ewretx=0.056698 sprtrn=0.014759 year=2010 month=.
 _ERROR_=1 _N_=4
 NOTE: Invalid argument to function MONTH(20100528) at line 654 column 9.
 PERMNO=10001 date=20100528 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100428
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100531 RCRDDT=20100514 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100629 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.39
 ASKHI=11.8 PRC=11.4 VOL=3451 RET=0.004829 BID=11.37 ASK=11.4 SHROUT=6071 CFACPR=1 CFACSHR=1 ALTPRC=11.4 SPREAD=. ALTPRCDT=20100528
 RETX=0.000878 vwretd=-0.079136 vwretx=-0.081224 ewretd=-0.076929 ewretx=-0.078435 sprtrn=-0.081976 year=2010 month=. _ERROR_=1 _N_=5
 NOTE: Invalid argument to function MONTH(20100630) at line 654 column 9.
 PERMNO=10001 date=20100630 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100526
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100630 RCRDDT=20100615 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100708 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.86
 ASKHI=12.3 PRC=10.86 VOL=3537 RET=-0.043421 BID=10.85 ASK=10.91 SHROUT=6080 CFACPR=1 CFACSHR=1 ALTPRC=10.86 SPREAD=.
 ALTPRCDT=20100630 RETX=-0.047368 vwretd=-0.050725 vwretx=-0.052465 ewretd=-0.056799 ewretx=-0.058868 sprtrn=-0.053882 year=2010
 month=. _ERROR_=1 _N_=6
 NOTE: Invalid argument to function MONTH(20100730) at line 654 column 9.
 PERMNO=10001 date=20100730 NAMEENDT=20170803 SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC
 SHRCLS=  TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410
 DCLRDT=20100701 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100730 RCRDDT=20100715 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045
 FACPR=0 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100830 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1
 BIDLO=10.85 ASKHI=11.81 PRC=11.72 VOL=2858 RET=0.083333 BID=11.68 ASK=11.75 SHROUT=6080 CFACPR=1 CFACSHR=1 ALTPRC=11.72 SPREAD=.
 ALTPRCDT=20100730 RETX=0.07919 vwretd=0.070292 vwretx=0.068594 ewretd=0.05994 ewretx=0.058682 sprtrn=0.068778 year=2010 month=.
 _ERROR_=1 _N_=7
 NOTE: Invalid argument to function MONTH(20100831) at line 654 column 9.
 PERMNO=10001 date=20100831 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100728
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100831 RCRDDT=20100813 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100929 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.15
 ASKHI=12.35 PRC=10.371 VOL=2595 RET=-0.111263 BID=10.4 ASK=10.6 SHROUT=6073 CFACPR=1 CFACSHR=1 ALTPRC=10.371 SPREAD=.
 ALTPRCDT=20100831 RETX=-0.115102 vwretd=-0.042813 vwretx=-0.044938 ewretd=-0.047566 ewretx=-0.049083 sprtrn=-0.047449 year=2010
 month=. _ERROR_=1 _N_=8
 NOTE: Invalid argument to function MONTH(20100930) at line 654 column 9.
 PERMNO=10001 date=20100930 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100827
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100930 RCRDDT=20100915 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20101028 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.435
 ASKHI=11.24 PRC=11.12 VOL=1591 RET=0.07656 BID=11.05 ASK=11.12 SHROUT=6073 CFACPR=1 CFACSHR=1 ALTPRC=11.12 SPREAD=.
 ALTPRCDT=20100930 RETX=0.072221 vwretd=0.091518 vwretx=0.089635 ewretd=0.096418 ewretx=0.094485 sprtrn=0.087551 year=2010 month=.
 _ERROR_=1 _N_=9
 NOTE: Invalid argument to function MONTH(20101029) at line 654 column 9.
 PERMNO=10001 date=20101029 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100929
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20101029 RCRDDT=20101015 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20101129 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11
 ASKHI=11.45 PRC=11.4399 VOL=1803 RET=0.032815 BID=11.28 ASK=11.44 SHROUT=6074 CFACPR=1 CFACSHR=1 ALTPRC=11.4399 SPREAD=.
 ALTPRCDT=20101029 RETX=0.028768 vwretd=0.038531 vwretx=0.037009 ewretd=0.040681 ewretx=0.039488 sprtrn=0.036856 year=2010 month=.
 _ERROR_=1 _N_=10
 NOTE: Invalid argument to function MONTH(20101130) at line 654 column 9.
 PERMNO=10001 date=20101130 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20101101
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20101130 RCRDDT=20101115 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20101230 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=9.79
 ASKHI=11.35 PRC=10.04 VOL=12695 RET=-0.118436 BID=10.04 ASK=10.05 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=10.04 SPREAD=.
 ALTPRCDT=20101130 RETX=-0.12237 vwretd=0.005108 vwretx=0.002908 ewretd=0.010736 ewretx=0.008972 sprtrn=-0.00229 year=2010 month=.
 _ERROR_=1 _N_=11
 NOTE: Invalid argument to function MONTH(20101231) at line 654 column 9.
 PERMNO=10001 date=20101231 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20101201
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20101231 RCRDDT=20101215 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110130 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.08
 ASKHI=10.53 PRC=10.52 VOL=5200 RET=0.052291 BID=10.49 ASK=10.52 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=10.52 SPREAD=.
 ALTPRCDT=20101231 RETX=0.047809 vwretd=0.06715 vwretx=0.064817 ewretd=0.068851 ewretx=0.065469 sprtrn=0.0653 year=2010 month=.
 _ERROR_=1 _N_=12
 NOTE: Invalid argument to function MONTH(20110131) at line 654 column 9.
 PERMNO=10001 date=20110131 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110105
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110131 RCRDDT=20110114 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110227 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.4
 ASKHI=10.92 PRC=10.78 VOL=4648 RET=0.028992 BID=10.72 ASK=10.74 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=10.78 SPREAD=.
 ALTPRCDT=20110131 RETX=0.024715 vwretd=0.019157 vwretx=0.018203 ewretd=0.014412 ewretx=0.013611 sprtrn=0.022646 year=2011 month=.
 _ERROR_=1 _N_=13
 NOTE: Invalid argument to function MONTH(20110228) at line 654 column 9.
 PERMNO=10001 date=20110228 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110126
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110228 RCRDDT=20110215 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110330 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.76
 ASKHI=10.99 PRC=10.98 VOL=4586 RET=0.022727 BID=10.96 ASK=10.99 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=10.98 SPREAD=.
 ALTPRCDT=20110228 RETX=0.018553 vwretd=0.038165 vwretx=0.036232 ewretd=0.037036 ewretx=0.035725 sprtrn=0.031957 year=2011 month=.
 _ERROR_=1 _N_=14
 NOTE: Invalid argument to function MONTH(20110331) at line 654 column 9.
 PERMNO=10001 date=20110331 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110223
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110331 RCRDDT=20110315 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110428 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.825
 ASKHI=11.73 PRC=11.73 VOL=4137 RET=0.072404 BID=11.72 ASK=11.73 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=11.73 SPREAD=.
 ALTPRCDT=20110331 RETX=0.068306 vwretd=0.003366 vwretx=0.001781 ewretd=0.008605 ewretx=0.006786 sprtrn=-0.001047 year=2011 month=.
 _ERROR_=1 _N_=15
 NOTE: Invalid argument to function MONTH(20110429) at line 654 column 9.
 PERMNO=10001 date=20110429 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110330
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110429 RCRDDT=20110415 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110530 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11.23
 ASKHI=11.83 PRC=11.23 VOL=4109 RET=-0.038789 BID=11.21 ASK=11.23 SHROUT=8151 CFACPR=1 CFACSHR=1 ALTPRC=11.23 SPREAD=.
 ALTPRCDT=20110429 RETX=-0.042626 vwretd=0.028688 vwretx=0.027573 ewretd=0.019203 ewretx=0.018109 sprtrn=0.028495 year=2011 month=.
 _ERROR_=1 _N_=16
 NOTE: Invalid argument to function MONTH(20110531) at line 654 column 9.
 PERMNO=10001 date=20110531 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110427
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110531 RCRDDT=20110513 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110629 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11.09
 ASKHI=11.5 PRC=11.5 VOL=4979 RET=0.02805 BID=11.46 ASK=11.5 SHROUT=8151 CFACPR=1 CFACSHR=1 ALTPRC=11.5 SPREAD=. ALTPRCDT=20110531
 RETX=0.024043 vwretd=-0.014935 vwretx=-0.016942 ewretd=-0.018549 ewretx=-0.020191 sprtrn=-0.013501 year=2011 month=. _ERROR_=1
 _N_=17
 NOTE: Invalid argument to function MONTH(20110630) at line 654 column 9.
 PERMNO=10001 date=20110630 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110531
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110630 RCRDDT=20110615 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110728 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11.32
 ASKHI=11.6 PRC=11.55 VOL=2472 RET=0.008261 BID=11.51 ASK=11.55 SHROUT=8151 CFACPR=1 CFACSHR=1 ALTPRC=11.55 SPREAD=.
 ALTPRCDT=20110630 RETX=0.004348 vwretd=-0.018395 vwretx=-0.020161 ewretd=-0.024106 ewretx=-0.026251 sprtrn=-0.018258 year=2011
 month=. _ERROR_=1 _N_=18
 NOTE: Invalid argument to function MONTH(20110729) at line 654 column 9.
 PERMNO=10001 date=20110729 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110615
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110729 RCRDDT=20110715 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110830 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11.14
 ASKHI=11.8699 PRC=11.18 VOL=2860 RET=-0.028139 BID=11.13 ASK=11.18 SHROUT=8151 CFACPR=1 CFACSHR=1 ALTPRC=11.18 SPREAD=.
 ALTPRCDT=20110729 RETX=-0.032035 vwretd=-0.02247 vwretx=-0.023611 ewretd=-0.021813 ewretx=-0.022838 sprtrn=-0.021474 year=2011
 month=. _ERROR_=1 _N_=19
 NOTE: Invalid argument to function MONTH(20110831) at line 654 column 9.
 WARNING: Limit set by ERRORS= option reached.  Further errors of this type will not be printed.
 PERMNO=10001 date=20110831 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110727
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110831 RCRDDT=20110815 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110929 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.77
 ASKHI=11.55 PRC=10.98 VOL=5307 RET=-0.013864 BID=10.97 ASK=11.02 SHROUT=8152 CFACPR=1 CFACSHR=1 ALTPRC=10.98 SPREAD=.
 ALTPRCDT=20110831 RETX=-0.017889 vwretd=-0.057472 vwretx=-0.059612 ewretd=-0.075715 ewretx=-0.077329 sprtrn=-0.056791 year=2011
 month=. _ERROR_=1 _N_=20
 NOTE: Mathematical operations could not be performed at the following places. The results of the operations have been set to 
       missing values.
       Each place is given by: (Number of times) at (Line):(Column).
       660140 at 654:9   
 NOTE: There were 677216 observations read from the data set PAPER.CSRP_MONTHLY_STOCK_CHAR.
 NOTE: The data set PAPER.CSRP_MONTHLY_STOCK_CHAR2 has 660140 observations and 66 variables.
 NOTE: DATA statement used (Total process time):
       real time           3.32 seconds
       user cpu time       0.35 seconds
       system cpu time     0.40 seconds
       memory              3585.62k
       OS Memory           38324.00k
       Timestamp           03/27/2018 07:07:00 PM
       Step Count                        87  Switch Count  1
       Page Faults                       0
       Page Reclaims                     498
       Page Swaps                        0
       Voluntary Context Switches        14289
       Involuntary Context Switches      36
       Block Input Operations            669184
       Block Output Operations           673544
       
 
 657        
 658        proc sort data=paper.CSRP_Monthly_Stock_char2;
 659        by ticker year;
 660        run;
 
 NOTE: There were 660140 observations read from the data set PAPER.CSRP_MONTHLY_STOCK_CHAR2.
 NOTE: The data set PAPER.CSRP_MONTHLY_STOCK_CHAR2 has 660140 observations and 66 variables.
 NOTE: PROCEDURE SORT used (Total process time):
       real time           3.62 seconds
       user cpu time       0.65 seconds
       system cpu time     0.54 seconds
       memory              381178.04k
       OS Memory           414816.00k
       Timestamp           03/27/2018 07:07:03 PM
       Step Count                        88  Switch Count  1
       Page Faults                       0
       Page Reclaims                     92525
       Page Swaps                        0
       Voluntary Context Switches        17438
       Involuntary Context Switches      21
       Block Input Operations            673568
       Block Output Operations           673544
       
 
 661        
 662        *find additional bad data: tickers with 2 CEO records for the same year;
 663        proc freq data=paper.Compustat_ExecuComp2;
 664        tables ticker * year / noprint out=paper.multiple_ceos (where=(count > 1));
 665        run;
 
 NOTE: There were 13678 observations read from the data set PAPER.COMPUSTAT_EXECUCOMP2.
 NOTE: The data set PAPER.MULTIPLE_CEOS has 0 observations and 4 variables.
 NOTE: PROCEDURE FREQ used (Total process time):
       real time           0.09 seconds
       user cpu time       0.03 seconds
       system cpu time     0.02 seconds
       memory              5688.75k
       OS Memory           39888.00k
       Timestamp           03/27/2018 07:07:04 PM
       Step Count                        89  Switch Count  5
       Page Faults                       0
       Page Reclaims                     816
       Page Swaps                        0
       Voluntary Context Switches        509
       Involuntary Context Switches      0
       Block Input Operations            55840
       Block Output Operations           1320
       
 
 666        
 667        *Remove all bad years from both data sources;
 668        data paper.Compustat_ExecuComp3;
 669        merge paper.Compustat_ExecuComp2
 670        paper.multiple_CEOs (keep=ticker year in=had_multiple_CEOs);
 671        by ticker year;
 672        if had_multiple_CEOs then delete;
 673        run;
 
 NOTE: There were 13678 observations read from the data set PAPER.COMPUSTAT_EXECUCOMP2.
 NOTE: There were 0 observations read from the data set PAPER.MULTIPLE_CEOS.
 NOTE: The data set PAPER.COMPUSTAT_EXECUCOMP3 has 13678 observations and 107 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.12 seconds
       user cpu time       0.02 seconds
       system cpu time     0.03 seconds
       memory              4074.90k
       OS Memory           38584.00k
       Timestamp           03/27/2018 07:07:04 PM
       Step Count                        90  Switch Count  1
       Page Faults                       0
       Page Reclaims                     540
       Page Swaps                        0
       Voluntary Context Switches        1056
       Involuntary Context Switches      1
       Block Input Operations            288
       Block Output Operations           55816
       
 
 674        
 675        data paper.CSRP_Monthly_Stock_char3;
 676        merge paper.CSRP_Monthly_Stock_char2
 677        paper.multiple_CEOs (keep=ticker year in=had_multiple_CEOs);
 678        by ticker year;
 679        if had_multiple_CEOs then delete;
 680        run;
 
 NOTE: There were 660140 observations read from the data set PAPER.CSRP_MONTHLY_STOCK_CHAR2.
 NOTE: There were 0 observations read from the data set PAPER.MULTIPLE_CEOS.
 NOTE: The data set PAPER.CSRP_MONTHLY_STOCK_CHAR3 has 660140 observations and 66 variables.
 NOTE: DATA statement used (Total process time):
       real time           3.37 seconds
       user cpu time       0.33 seconds
       system cpu time     0.42 seconds
       memory              4033.34k
       OS Memory           38584.00k
       Timestamp           03/27/2018 07:07:07 PM
       Step Count                        91  Switch Count  1
       Page Faults                       0
       Page Reclaims                     536
       Page Swaps                        0
       Voluntary Context Switches        15299
       Involuntary Context Switches      24
       Block Input Operations            673568
       Block Output Operations           673544
       
 
 681        
 682        *find additional bad data: multiple return records for the same month/year;
 683        proc freq data=paper.CSRP_Monthly_Stock_char3;
 684        tables ticker * year * month / noprint out=paper.multiple_returns;
 685        run;
 
 NOTE: There were 660140 observations read from the data set PAPER.CSRP_MONTHLY_STOCK_CHAR3.
 NOTE: The data set PAPER.MULTIPLE_RETURNS has 58422 observations and 5 variables.
 NOTE: PROCEDURE FREQ used (Total process time):
       real time           0.83 seconds
       user cpu time       0.34 seconds
       system cpu time     0.17 seconds
       memory              13491.68k
       OS Memory           51036.00k
       Timestamp           03/27/2018 07:07:08 PM
       Step Count                        92  Switch Count  5
       Page Faults                       0
       Page Reclaims                     3614
       Page Swaps                        0
       Voluntary Context Switches        4166
       Involuntary Context Switches      10
       Block Input Operations            673568
       Block Output Operations           12584
       
 
 686        
 687        *Remove all matching year data for multiple returns;
 688        proc sort data=paper.multiple_returns out=multiple_returns (keep=ticker year) NODUPKEY;
 689        by ticker year;
 690        run;
 
 NOTE: There were 58422 observations read from the data set PAPER.MULTIPLE_RETURNS.
 NOTE: 0 observations with duplicate key values were deleted.
 NOTE: The data set WORK.MULTIPLE_RETURNS has 58422 observations and 2 variables.
 NOTE: PROCEDURE SORT used (Total process time):
       real time           0.02 seconds
       user cpu time       0.01 seconds
       system cpu time     0.00 seconds
       memory              7002.12k
       OS Memory           41428.00k
       Timestamp           03/27/2018 07:07:08 PM
       Step Count                        93  Switch Count  1
       Page Faults                       0
       Page Reclaims                     1254
       Page Swaps                        0
       Voluntary Context Switches        22
       Involuntary Context Switches      0
       Block Input Operations            4640
       Block Output Operations           2064
       
 
 691        
 692        data paper.Compustat_ExecuComp4;
 693        merge paper.Compustat_ExecuComp3
 694        multiple_returns (in=had_multiple_returns);
 695        by ticker year;
 696        if had_multiple_returns then delete;
 697        run;
 
 NOTE: There were 13678 observations read from the data set PAPER.COMPUSTAT_EXECUCOMP3.
 NOTE: There were 58422 observations read from the data set WORK.MULTIPLE_RETURNS.
 NOTE: The data set PAPER.COMPUSTAT_EXECUCOMP4 has 1394 observations and 107 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.09 seconds
       user cpu time       0.04 seconds
       system cpu time     0.02 seconds
       memory              4988.28k
       OS Memory           39608.00k
       Timestamp           03/27/2018 07:07:08 PM
       Step Count                        94  Switch Count  1
       Page Faults                       0
       Page Reclaims                     783
       Page Swaps                        0
       Voluntary Context Switches        236
       Involuntary Context Switches      4
       Block Input Operations            55840
       Block Output Operations           5896
       
 
 698        
 699        data paper.CSRP_Monthly_Stock_char4;
 700        merge paper.CSRP_Monthly_Stock_char3
 701        multiple_returns (in=had_multiple_returns);
 702        by ticker year;
 703        if had_multiple_returns then delete;
 704        run;
 
 NOTE: There were 660140 observations read from the data set PAPER.CSRP_MONTHLY_STOCK_CHAR3.
 NOTE: There were 58422 observations read from the data set WORK.MULTIPLE_RETURNS.
 NOTE: The data set PAPER.CSRP_MONTHLY_STOCK_CHAR4 has 0 observations and 66 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.26 seconds
       user cpu time       0.18 seconds
       system cpu time     0.07 seconds
       memory              3702.18k
       OS Memory           37816.00k
       Timestamp           03/27/2018 07:07:08 PM
       Step Count                        95  Switch Count  1
       Page Faults                       0
       Page Reclaims                     547
       Page Swaps                        0
       Voluntary Context Switches        46
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           264
       
 
 705        
 706        *create new variable annualized growth;
 707        data paper.CSRP_annual_returns;
 708        set paper.CSRP_Monthly_Stock_char4;
 709        by ticker year;
 710        retain annual_return 1;
 711        annual_return = annual_return * (1 + RET);
 712        if month = 12 or last.ticker;
 713        annual_return = (annual_return - 1) * 100;
 714        output;
 715        annual_return = 1;
 716        keep ticker year annual_return;
 717        run;
 
 NOTE: Character values have been converted to numeric values at the places given by: (Line):(Column).
       711:38   
 NOTE: There were 0 observations read from the data set PAPER.CSRP_MONTHLY_STOCK_CHAR4.
 NOTE: The data set PAPER.CSRP_ANNUAL_RETURNS has 0 observations and 3 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.01 seconds
       user cpu time       0.00 seconds
       system cpu time     0.00 seconds
       memory              962.62k
       OS Memory           36020.00k
       Timestamp           03/27/2018 07:07:08 PM
       Step Count                        96  Switch Count  1
       Page Faults                       0
       Page Reclaims                     125
       Page Swaps                        0
       Voluntary Context Switches        49
       Involuntary Context Switches      0
       Block Input Operations            288
       Block Output Operations           264
       
 
 718        
 719        *use proc contents to see if there is a type mismatch;
 720        proc contents
 721        data=paper.annual_returns;
 ERROR: File PAPER.ANNUAL_RETURNS.DATA does not exist.
 722        run;
 
 NOTE: Statements not processed because of errors noted above.
 NOTE: PROCEDURE CONTENTS used (Total process time):
       real time           0.00 seconds
       user cpu time       0.00 seconds
       system cpu time     0.00 seconds
       memory              326.62k
       OS Memory           35760.00k
       Timestamp           03/27/2018 07:07:08 PM
       Step Count                        97  Switch Count  0
       Page Faults                       0
       Page Reclaims                     48
       Page Swaps                        0
       Voluntary Context Switches        7
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           8
       
 NOTE: The SAS System stopped processing this step because of errors.
 723        
 
 
 724        proc contents
 725        data=paper.Compustat_ExecuComp4;
 726        run;
 
 NOTE: PROCEDURE CONTENTS used (Total process time):
       real time           0.16 seconds
       user cpu time       0.16 seconds
       system cpu time     0.01 seconds
       memory              4622.51k
       OS Memory           37044.00k
       Timestamp           03/27/2018 07:07:08 PM
       Step Count                        98  Switch Count  0
       Page Faults                       0
       Page Reclaims                     334
       Page Swaps                        0
       Voluntary Context Switches        12
       Involuntary Context Switches      0
       Block Input Operations            288
       Block Output Operations           104
       
 
 727        
 728        *Merge CEO data and firm data by year. Use CUSIP from CEO data;
 729        DATA paper.ceo_firm ;
 730        length ticker $5;
 731        MERGE paper.CSRP_annual_returns
 732        paper.compustat_execucomp4;
 733        BY ticker;
 734        RUN;
 
 NOTE: There were 0 observations read from the data set PAPER.CSRP_ANNUAL_RETURNS.
 NOTE: There were 1394 observations read from the data set PAPER.COMPUSTAT_EXECUCOMP4.
 NOTE: The data set PAPER.CEO_FIRM has 1394 observations and 108 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.03 seconds
       user cpu time       0.00 seconds
       system cpu time     0.00 seconds
       memory              4072.34k
       OS Memory           39096.00k
       Timestamp           03/27/2018 07:07:09 PM
       Step Count                        99  Switch Count  1
       Page Faults                       0
       Page Reclaims                     584
       Page Swaps                        0
       Voluntary Context Switches        179
       Involuntary Context Switches      0
       Block Input Operations            5920
       Block Output Operations           5896
       
 
 735        
 736        proc contents
 737        data=paper.ceo_firm;
 738        run;
 
 NOTE: PROCEDURE CONTENTS used (Total process time):
       real time           0.15 seconds
       user cpu time       0.15 seconds
       system cpu time     0.00 seconds
       memory              2337.00k
       OS Memory           37300.00k
       Timestamp           03/27/2018 07:07:09 PM
       Step Count                        100  Switch Count  0
       Page Faults                       0
       Page Reclaims                     308
       Page Swaps                        0
       Voluntary Context Switches        15
       Involuntary Context Switches      0
       Block Input Operations            288
       Block Output Operations           88
       
 
 739        
 740        *remove missing return data;
 741        data paper.ceo_firm;
 742        set paper.ceo_firm;
 743        if annual_return = . then delete;
 744        run;
 
 NOTE: There were 1394 observations read from the data set PAPER.CEO_FIRM.
 NOTE: The data set PAPER.CEO_FIRM has 0 observations and 108 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.02 seconds
       user cpu time       0.01 seconds
       system cpu time     0.01 seconds
       memory              2428.15k
       OS Memory           37044.00k
       Timestamp           03/27/2018 07:07:09 PM
       Step Count                        101  Switch Count  1
       Page Faults                       0
       Page Reclaims                     314
       Page Swaps                        0
       Voluntary Context Switches        88
       Involuntary Context Switches      0
       Block Input Operations            5632
       Block Output Operations           264
       
 
 745        
 746        OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 758

Thanks for the help!

Shmuel · Posted 03-27-2018 03:27 PM

Have you noticed the message:

NOTE: Invalid argument to function MONTH(20100129) at line 654 column 9.

It seems that the variable DATE is not a sas data varioable but a simple integer, which unables using function month().

You can convert the '20100901' numeric variable into a sas date by:

date = input(put(date,z8.),yymmdd8.);

Try it.

sastuck · Posted 03-27-2018 03:39 PM

@Shmuel where in the program exactly would this go? Thanks!

Shmuel · Posted 03-27-2018 03:52 PM

Here are your steps to import and check the date:

*import csrp dataset;
PROC IMPORT out=paper.CSRP_Monthly_Stock_char
datafile="~/425/425_Final_Paper/CSRP_MonthlyStock_char.csv"
DBMS=CSV replace;
getnames= yes;
guessingrows=max;
run;

*remove bad data; 
data paper.CSRP_Monthly_Stock_char2;
set paper.CSRP_Monthly_Stock_char;
if cusip = ' ' then delete;
if ret = . then delete;
year = int( date/10000 );
month = month(date);
if cusip =: '?' then cusip = substr(cusip, 2);
run;

I prefer enter a mid step of converting the date, oterwise you can enter the conversion in the 2nd step:

*remove bad data; 
data paper.CSRP_Monthly_Stock_char2;
set paper.CSRP_Monthly_Stock_char;
if cusip = ' ' then delete;
if ret = . then delete;

data = input(put(date,z8.),yymmdd8.);
year = year(date);
/*********
year = int( date/10000 );
**********/
month = month(date);
if cusip =: '?' then cusip = substr(cusip, 2);
run;

After conversion you should check - are there other statements relating to the DATE variable,

and do you treat it properly.

sastuck · Posted 03-27-2018 06:49 PM

I added your data step. Thanks for the suggestion! Here is the new log:

1          OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 70         
 71         *remove bad data;
 72         data paper.CSRP_Monthly_Stock_char2;
 73         set paper.CSRP_Monthly_Stock_char;
 74         if cusip = ' ' then delete;
 75         if ret = . then delete;
 76         data = input(put(date,z8.),yymmdd8.);
 77         year = year(date);
 78         month = month(date);
 79         if cusip =: '?' then cusip = substr(cusip, 2);
 80         run;
 
 NOTE: Character values have been converted to numeric values at the places given by: (Line):(Column).
       75:4   
 NOTE: Invalid argument to function YEAR(20100129) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100129) at line 78 column 9.
 PERMNO=10001 date=20100129 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20091216
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100129 RCRDDT=20100115 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100225 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=9.86
 ASKHI=10.5 PRC=10.06 VOL=3104 RET=-0.018932 BID=10.06 ASK=10.15 SHROUT=4361 CFACPR=1 CFACSHR=1 ALTPRC=10.06 SPREAD=.
 ALTPRCDT=20100129 RETX=-0.023301 vwretd=-0.037096 vwretx=-0.038109 ewretd=-0.011388 ewretx=-0.012292 sprtrn=-0.036974 data=18291
 year=. month=. _ERROR_=1 _N_=1
 NOTE: Invalid argument to function YEAR(20100226) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100226) at line 78 column 9.
 PERMNO=10001 date=20100226 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100128
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100226 RCRDDT=20100215 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100330 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=9.92
 ASKHI=10.2201 PRC=10.0084 VOL=1510 RET=-0.000656 BID=10 ASK=10.04 SHROUT=4361 CFACPR=1 CFACSHR=1 ALTPRC=10.0084 SPREAD=.
 ALTPRCDT=20100226 RETX=-0.005129 vwretd=0.034774 vwretx=0.032688 ewretd=0.033603 ewretx=0.032232 sprtrn=0.028514 data=18319 year=.
 month=. _ERROR_=1 _N_=2
 NOTE: Invalid argument to function YEAR(20100331) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100331) at line 78 column 9.
 PERMNO=10001 date=20100331 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100302
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100331 RCRDDT=20100315 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100429 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=9.91
 ASKHI=10.18 PRC=10.17 VOL=2283 RET=0.020643 BID=10.17 ASK=10.23 SHROUT=4361 CFACPR=1 CFACSHR=1 ALTPRC=10.17 SPREAD=.
 ALTPRCDT=20100331 RETX=0.016146 vwretd=0.063606 vwretx=0.06192 ewretd=0.069289 ewretx=0.067252 sprtrn=0.058796 data=18352 year=.
 month=. _ERROR_=1 _N_=3
 NOTE: Invalid argument to function YEAR(20100430) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100430) at line 78 column 9.
 PERMNO=10001 date=20100430 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100331
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100430 RCRDDT=20100415 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100527 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.25
 ASKHI=11.61 PRC=11.39 VOL=3350 RET=0.124385 BID=11.57 ASK=11.65 SHROUT=6070 CFACPR=1 CFACSHR=1 ALTPRC=11.39 SPREAD=.
 ALTPRCDT=20100430 RETX=0.119961 vwretd=0.020043 vwretx=0.01893 ewretd=0.057843 ewretx=0.056698 sprtrn=0.014759 data=18382 year=.
 month=. _ERROR_=1 _N_=4
 NOTE: Invalid argument to function YEAR(20100528) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100528) at line 78 column 9.
 PERMNO=10001 date=20100528 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100428
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100531 RCRDDT=20100514 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100629 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.39
 ASKHI=11.8 PRC=11.4 VOL=3451 RET=0.004829 BID=11.37 ASK=11.4 SHROUT=6071 CFACPR=1 CFACSHR=1 ALTPRC=11.4 SPREAD=. ALTPRCDT=20100528
 RETX=0.000878 vwretd=-0.079136 vwretx=-0.081224 ewretd=-0.076929 ewretx=-0.078435 sprtrn=-0.081976 data=18410 year=. month=.
 _ERROR_=1 _N_=5
 NOTE: Invalid argument to function YEAR(20100630) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100630) at line 78 column 9.
 PERMNO=10001 date=20100630 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=29269V10 TICKER=EGAS COMNAM=ENERGY INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100526
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100630 RCRDDT=20100615 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100708 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.86
 ASKHI=12.3 PRC=10.86 VOL=3537 RET=-0.043421 BID=10.85 ASK=10.91 SHROUT=6080 CFACPR=1 CFACSHR=1 ALTPRC=10.86 SPREAD=.
 ALTPRCDT=20100630 RETX=-0.047368 vwretd=-0.050725 vwretx=-0.052465 ewretd=-0.056799 ewretx=-0.058868 sprtrn=-0.053882 data=18443
 year=. month=. _ERROR_=1 _N_=6
 NOTE: Invalid argument to function YEAR(20100730) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100730) at line 78 column 9.
 PERMNO=10001 date=20100730 NAMEENDT=20170803 SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC
 SHRCLS=  TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410
 DCLRDT=20100701 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100730 RCRDDT=20100715 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045
 FACPR=0 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100830 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1
 BIDLO=10.85 ASKHI=11.81 PRC=11.72 VOL=2858 RET=0.083333 BID=11.68 ASK=11.75 SHROUT=6080 CFACPR=1 CFACSHR=1 ALTPRC=11.72 SPREAD=.
 ALTPRCDT=20100730 RETX=0.07919 vwretd=0.070292 vwretx=0.068594 ewretd=0.05994 ewretx=0.058682 sprtrn=0.068778 data=18473 year=.
 month=. _ERROR_=1 _N_=7
 NOTE: Invalid argument to function YEAR(20100831) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100831) at line 78 column 9.
 PERMNO=10001 date=20100831 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100728
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100831 RCRDDT=20100813 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20100929 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.15
 ASKHI=12.35 PRC=10.371 VOL=2595 RET=-0.111263 BID=10.4 ASK=10.6 SHROUT=6073 CFACPR=1 CFACSHR=1 ALTPRC=10.371 SPREAD=.
 ALTPRCDT=20100831 RETX=-0.115102 vwretd=-0.042813 vwretx=-0.044938 ewretd=-0.047566 ewretx=-0.049083 sprtrn=-0.047449 data=18505
 year=. month=. _ERROR_=1 _N_=8
 NOTE: Invalid argument to function YEAR(20100930) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20100930) at line 78 column 9.
 PERMNO=10001 date=20100930 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100827
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20100930 RCRDDT=20100915 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20101028 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.435
 ASKHI=11.24 PRC=11.12 VOL=1591 RET=0.07656 BID=11.05 ASK=11.12 SHROUT=6073 CFACPR=1 CFACSHR=1 ALTPRC=11.12 SPREAD=.
 ALTPRCDT=20100930 RETX=0.072221 vwretd=0.091518 vwretx=0.089635 ewretd=0.096418 ewretx=0.094485 sprtrn=0.087551 data=18535 year=.
 month=. _ERROR_=1 _N_=9
 NOTE: Invalid argument to function YEAR(20101029) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20101029) at line 78 column 9.
 PERMNO=10001 date=20101029 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20100929
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20101029 RCRDDT=20101015 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20101129 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11
 ASKHI=11.45 PRC=11.4399 VOL=1803 RET=0.032815 BID=11.28 ASK=11.44 SHROUT=6074 CFACPR=1 CFACSHR=1 ALTPRC=11.4399 SPREAD=.
 ALTPRCDT=20101029 RETX=0.028768 vwretd=0.038531 vwretx=0.037009 ewretd=0.040681 ewretx=0.039488 sprtrn=0.036856 data=18564 year=.
 month=. _ERROR_=1 _N_=10
 NOTE: Invalid argument to function YEAR(20101130) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20101130) at line 78 column 9.
 PERMNO=10001 date=20101130 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20101101
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20101130 RCRDDT=20101115 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20101230 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=9.79
 ASKHI=11.35 PRC=10.04 VOL=12695 RET=-0.118436 BID=10.04 ASK=10.05 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=10.04 SPREAD=.
 ALTPRCDT=20101130 RETX=-0.12237 vwretd=0.005108 vwretx=0.002908 ewretd=0.010736 ewretx=0.008972 sprtrn=-0.00229 data=18596 year=.
 month=. _ERROR_=1 _N_=11
 NOTE: Invalid argument to function YEAR(20101231) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20101231) at line 78 column 9.
 PERMNO=10001 date=20101231 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20101201
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20101231 RCRDDT=20101215 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110130 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.08
 ASKHI=10.53 PRC=10.52 VOL=5200 RET=0.052291 BID=10.49 ASK=10.52 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=10.52 SPREAD=.
 ALTPRCDT=20101231 RETX=0.047809 vwretd=0.06715 vwretx=0.064817 ewretd=0.068851 ewretx=0.065469 sprtrn=0.0653 data=18627 year=.
 month=. _ERROR_=1 _N_=12
 NOTE: Invalid argument to function YEAR(20110131) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20110131) at line 78 column 9.
 PERMNO=10001 date=20110131 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110105
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110131 RCRDDT=20110114 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110227 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.4
 ASKHI=10.92 PRC=10.78 VOL=4648 RET=0.028992 BID=10.72 ASK=10.74 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=10.78 SPREAD=.
 ALTPRCDT=20110131 RETX=0.024715 vwretd=0.019157 vwretx=0.018203 ewretd=0.014412 ewretx=0.013611 sprtrn=0.022646 data=18658 year=.
 month=. _ERROR_=1 _N_=13
 NOTE: Invalid argument to function YEAR(20110228) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20110228) at line 78 column 9.
 PERMNO=10001 date=20110228 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110126
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110228 RCRDDT=20110215 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110330 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.76
 ASKHI=10.99 PRC=10.98 VOL=4586 RET=0.022727 BID=10.96 ASK=10.99 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=10.98 SPREAD=.
 ALTPRCDT=20110228 RETX=0.018553 vwretd=0.038165 vwretx=0.036232 ewretd=0.037036 ewretx=0.035725 sprtrn=0.031957 data=18686 year=.
 month=. _ERROR_=1 _N_=14
 NOTE: Invalid argument to function YEAR(20110331) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20110331) at line 78 column 9.
 PERMNO=10001 date=20110331 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110223
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110331 RCRDDT=20110315 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110428 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.825
 ASKHI=11.73 PRC=11.73 VOL=4137 RET=0.072404 BID=11.72 ASK=11.73 SHROUT=7834 CFACPR=1 CFACSHR=1 ALTPRC=11.73 SPREAD=.
 ALTPRCDT=20110331 RETX=0.068306 vwretd=0.003366 vwretx=0.001781 ewretd=0.008605 ewretx=0.006786 sprtrn=-0.001047 data=18717 year=.
 month=. _ERROR_=1 _N_=15
 NOTE: Invalid argument to function YEAR(20110429) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20110429) at line 78 column 9.
 PERMNO=10001 date=20110429 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110330
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110429 RCRDDT=20110415 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110530 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11.23
 ASKHI=11.83 PRC=11.23 VOL=4109 RET=-0.038789 BID=11.21 ASK=11.23 SHROUT=8151 CFACPR=1 CFACSHR=1 ALTPRC=11.23 SPREAD=.
 ALTPRCDT=20110429 RETX=-0.042626 vwretd=0.028688 vwretx=0.027573 ewretd=0.019203 ewretx=0.018109 sprtrn=0.028495 data=18746 year=.
 month=. _ERROR_=1 _N_=16
 NOTE: Invalid argument to function YEAR(20110531) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20110531) at line 78 column 9.
 PERMNO=10001 date=20110531 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110427
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110531 RCRDDT=20110513 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110629 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11.09
 ASKHI=11.5 PRC=11.5 VOL=4979 RET=0.02805 BID=11.46 ASK=11.5 SHROUT=8151 CFACPR=1 CFACSHR=1 ALTPRC=11.5 SPREAD=. ALTPRCDT=20110531
 RETX=0.024043 vwretd=-0.014935 vwretx=-0.016942 ewretd=-0.018549 ewretx=-0.020191 sprtrn=-0.013501 data=18778 year=. month=.
 _ERROR_=1 _N_=17
 NOTE: Invalid argument to function YEAR(20110630) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20110630) at line 78 column 9.
 PERMNO=10001 date=20110630 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110531
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110630 RCRDDT=20110615 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110728 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11.32
 ASKHI=11.6 PRC=11.55 VOL=2472 RET=0.008261 BID=11.51 ASK=11.55 SHROUT=8151 CFACPR=1 CFACSHR=1 ALTPRC=11.55 SPREAD=.
 ALTPRCDT=20110630 RETX=0.004348 vwretd=-0.018395 vwretx=-0.020161 ewretd=-0.024106 ewretx=-0.026251 sprtrn=-0.018258 data=18808
 year=. month=. _ERROR_=1 _N_=18
 NOTE: Invalid argument to function YEAR(20110729) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20110729) at line 78 column 9.
 PERMNO=10001 date=20110729 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110615
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110729 RCRDDT=20110715 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110830 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=11.14
 ASKHI=11.8699 PRC=11.18 VOL=2860 RET=-0.028139 BID=11.13 ASK=11.18 SHROUT=8151 CFACPR=1 CFACSHR=1 ALTPRC=11.18 SPREAD=.
 ALTPRCDT=20110729 RETX=-0.032035 vwretd=-0.02247 vwretx=-0.023611 ewretd=-0.021813 ewretx=-0.022838 sprtrn=-0.021474 data=18837
 year=. month=. _ERROR_=1 _N_=19
 NOTE: Invalid argument to function YEAR(20110831) at line 77 column 8.
 NOTE: Invalid argument to function MONTH(20110831) at line 78 column 9.
 WARNING: Limit set by ERRORS= option reached.  Further errors of this type will not be printed.
 PERMNO=10001 date=20110831 NAMEENDT=. SHRCD=11 EXCHCD=2 SICCD=4925 NCUSIP=36720410 TICKER=EGAS COMNAM=GAS NATURAL INC SHRCLS= 
 TSYMBOL=EGAS NAICS=221210 PRIMEXCH=A TRDSTAT=A SECSTAT=R PERMCO=7953 ISSUNO=10398 HEXCD=2 HSICCD=4925 CUSIP=36720410 DCLRDT=20110727
 DLAMT=. DLPDT=. DLSTCD=. NEXTDT=. PAYDT=20110831 RCRDDT=20110815 SHRFLG=0 HSICMG=. HSICIG=. DISTCD=1222 DIVAMT=0.045 FACPR=0
 FACSHR=0 ACPERM=. ACCOMP=. SHRENDDT=20110929 NWPERM=. DLRETX=  DLPRC=. DLRET=  TRTSCD=5 NMSIND=5 MMCNT=0 NSDINX=1 BIDLO=10.77
 ASKHI=11.55 PRC=10.98 VOL=5307 RET=-0.013864 BID=10.97 ASK=11.02 SHROUT=8152 CFACPR=1 CFACSHR=1 ALTPRC=10.98 SPREAD=.
 ALTPRCDT=20110831 RETX=-0.017889 vwretd=-0.057472 vwretx=-0.059612 ewretd=-0.075715 ewretx=-0.077329 sprtrn=-0.056791 data=18870
 year=. month=. _ERROR_=1 _N_=20
 NOTE: Mathematical operations could not be performed at the following places. The results of the operations have been set to 
       missing values.
       Each place is given by: (Number of times) at (Line):(Column).
       660140 at 77:8   660140 at 78:9   
 NOTE: There were 677216 observations read from the data set PAPER.CSRP_MONTHLY_STOCK_CHAR.
 NOTE: The data set PAPER.CSRP_MONTHLY_STOCK_CHAR2 has 660140 observations and 67 variables.
 NOTE: DATA statement used (Total process time):
       real time           4.42 seconds
       user cpu time       0.48 seconds
       system cpu time     0.43 seconds
       memory              3587.93k
       OS Memory           31148.00k
       Timestamp           03/27/2018 10:43:41 PM
       Step Count                        29  Switch Count  1
       Page Faults                       0
       Page Reclaims                     1053
       Page Swaps                        0
       Voluntary Context Switches        12839
       Involuntary Context Switches      57
       Block Input Operations            669504
       Block Output Operations           681488
       
 
 81         
 82         OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 94

Shmuel · Posted 03-27-2018 11:56 PM

Sory, there was a mistype that you copied:

data = input(put(date,z8.),yymmdd8.);

should be

date = input(put(date,z8.),yymmdd8.);

Low number of observations