Hi! Is there any good way for writing documentation, in the SAS program or next to it? Many years ago I tried to use SAS Notepad. It was OK for documentation, but the Notepad document was NOT tied to the SAS program.   My question:  Do you have any good tips ? At present I use blocks of comments like below: ******************************************************; *** Test WPS_2_Excel_EXPORT.sas ; *** ; ******************************************************; Many thanks in advance! / Br Anders ... View more

Hi! I am running SAS in CAS (Cloud Analytic Services). The SAS format  IB4. is available there. In my SAS program  integer numbers are converted from character form into numeric form, many times. See example:     proc format;         value testf   0-10 = "1"                           11-20 = "2";  /** etc. */   run;   This is used in a Data step:   nnewval =   INPUT(  PUT(nval, testf.), 2.); The part  INPUT(PUT)  is executed MANY, MANY times, so I want to use SAS formats like IB8. However this is NOT supplied in CAS SAS. Is there any other "integer binary" format that can be used? My thought:  In the right hand side of the format definition, do not write the character integer, but rather a binary representation of the integer. That takes slightly more time in the creation of the format.        In the next step, when using the format,  the INPUT will be somewhat faster, since 2. is replaced by an "integer format". I tested this in WPS SAS, with  IB8.  The computations were speeded up. It was worth the extra programming! Many thanks in advance for any suggestions. CAS SAS is great to use! /Br Anders   ... View more

Hi! I want to use a statistical frequency distribution, that is not fully supported by SAS. I know the exact functional expression. I can generate  random numbers, that are uniformly distributed, using RAND('UNIFORM',0,1).   My question: How can I generate random numbers with this frequency distribution? /Br Anders Anders Sköllermo  Ph.D.,    anders.skollermo@one.se ... View more

QUESTION to SAS:  Is my choice of QMARKERS   793 a good choice? Is it too big or too small?                                        Where can I read about these numbers  “7, 25, 105” ?   QMARKERS= number - specifies the default number of markers to use for the P2 quantile estimation method. The number of markers controls the size of fixed memory space.      The default value depends on which quantiles you request. For the median (P50), number is 7. For the quantiles (P25 and P50), number is 25. For the quantiles P1, P5, P10, P75 P90, P95, or P99, number is 105. If you request several quantiles, then PROC MEANS uses the largest value of number. An odd integer greater than 3.       Increase the number of markers above the defaults settings to improve the accuracy of the estimate; reduce the number of markers to conserve memory and computing time.      Additions:  7 + 25 + 25 + 7*105 = 792 -> 793.       ... View more

When I want to compare two or more methods, what is the important? Shall I use USER CPU TIME  or  SYSTEM CPU TIME   ? Shall I use Memory   OR   OS memory? See the text below (provided by options FULLSTIMER) My method will not use a lot of memory – because I do not use sort very much. Cpu time for My method – I do not know quite yet.     My guess:  USER CPU Time and perhaps Memory. See below.        real time           0.02 seconds        user cpu time       0.00 seconds     ß        system cpu time     0.01 seconds ß        memory              7285.46k             ß        OS Memory           35788.00k       ß        Timestamp           2022-05-06 03:51:12 em        Step Count                        478  Switch Count  4        Page Faults                       0        Page Reclaims                     1676        Page Swaps                        0        Voluntary Context Switches        70        Involuntary Context Switches      0        Block Input Operations            0        Block Output Operations           264   ... View more