topic Re: SAS macro in SAS Programming

SAS macro

cho16 — Wed, 13 Apr 2016 20:20:34 GMT

Hi,

I have a below code which has macros and would like to simplify this in one step:

Please let me know

%let cmth = Apr;

%let dmth = Jul; %let lday = 31;

%let cyear = 2016; %let pyear = 2015;

%let sday = 01;

%let ayr = 2000; %let byr = 2001; %let cyr = 2002; %let dyr = 2003;

%let eyr = 2004; %let fyr = 2005; %let gyr = 2006; %let hyr = 2007;

%let iyr = 2008; %let jyr = 2009; %let kyr = 2010; %let lyr = 2011; %let myr = 2012; %let nyr = 2013; %let oyr = 2014;

DATA want;

SET test;

IF ((EFFECTIVE_DATE < "01Jan&&pyear"D OR EFFECTIVE_DATE > "31Dec&&pyear"D)

AND (PRODUCT_PBP = 'LIP1' OR PRODUCT_PBP = 'MAX1')

AND ((LAST_SURVEY_DATE >= "&sday&&dmth&&ayr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&ayr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&byr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&byr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&cyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&cyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&dyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&dyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&eyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&eyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&fyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&fyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&gyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&gyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&hyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&hyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&iyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&iyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&jyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&jyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&kyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&kyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&lyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&lyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&myr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&myr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&nyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&nyr"D)

OR (LAST_SURVEY_DATE >= "&sday&&dmth&&oyr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&oyr"D));

Run;

Thanks,

)

Re: SAS macro

Astounding — Wed, 13 Apr 2016 20:48:36 GMT

One simplification: take every occurrence of && and change it to &.

Another concerns the conditions for EFFECTIVE_DATE, which could be rewritten as:

(year(EFFECTIVE_DATE) = &pyear)

For all the conditions that involve LAST_SURVEY_DATE, it's important to know more about what you plan on doing. Will you always use SDAY=01, and LDAY=last day of the month? Or might you be selecting some other block of days within the month?

Re: SAS macro

cho16 — Wed, 13 Apr 2016 20:57:54 GMT

Hi,

Thanks !

It must be changed every month. For example if we are running it for Apr then it must be Current Month plus 3 (July)

Sday should be always 01 and last dat it depends on the month ( either 29 or 30 or 31)

Year should be current year minus 1 ( we need to poulate the data from 2000 to 2014)

Re: SAS macro

Astounding — Wed, 13 Apr 2016 21:14:25 GMT

So this must be pretty close then:

%let m=4; /* April */

%let cyear = 2016;

%let pyear = %eval(&cyear - 1);

%let last_year = %eval(&cyear - 2);

%let first_year = %eval(&cyear - 16);

if (year(EFFECTIVE_DATE) = &pyear) and (PRODUCT_PBP = 'LIP1' OR PRODUCT_PBP = 'MAX1') and

(month(LAST_SURVEY_DATE) in (&m, %eval(&m+3))) and (&first_year <= year(LAST_SURVEY_DATE) <= &last_year);

There will definitely be some complications (not worked out at this point) if the month ever becomes 10 or more, making month + 3 greater than 12.

Re: SAS macro

PGStats — Thu, 14 Apr 2016 02:36:25 GMT

No need for macros, as far as I can see.

DATA want;
retain lyr mth;
SET test;
if _n_ = 1 then do;
	mth = month(intnx("MONTH", today(), 3));
	lyr = year(today()) - 1;
	end;
IF	year(EFFECTIVE_DATE) >= 2000 AND
	year(EFFECTIVE_DATE) <= lyr AND
	month(EFFECTIVE_DATE) = mth AND
	PRODUCT_PBP in ('LIP1', 'MAX1');
drop lyr mth;
run;

Re: SAS macro

cho16 — Thu, 14 Apr 2016 03:41:47 GMT

Thanks PG.

How can we incorporate the Last_survey_date macro in the code ?Thanks

sday = 01

dmth should be current month +3 ( July)

ayr should be current year -2 ( from 2000 to 2014)

(LAST_SURVEY_DATE >= "&sday&&dmth&&ayr"D AND LAST_SURVEY_DATE <= "&lday&&dmth&&ayr"D)