Fair Enough!Thanks a ton 🙂 ... View more

Thanks for an elaborate explaination.It cleared quite a few concepts for me,except in the second iteration where the values of Name and Rate are retained. Aren't all the non-retaining variables set to missing in the PDV ,at the top of DATA step?Could you also tell me what is the exception here. ... View more

Hi, Thanks for a wonderful document (http://www2.sas.com/proceedings/sugi28/099-28.pdf.) first of all. Although, i have not been able to exactly decipher what's happening in the question above.Because in the pdf, the do loop is controlled by "last.pt" so all the data for a particular pt is iterated within the loop and then when the control reaches back to data step we have another patient. In this particular example however, The SAS data set BANKS is listed below: BANKS name rate FirstCapital0.0718 DirectBank0.0721 VirtualDirect0.0728   The following SAS program is submitted:   data newbank; do year = 1 to 3; set banks; capital + 5000; end; run; I don't think the same thing applies.It IS a DOW,just of a different sort.Could you please help out in understanding it's iterations. Thanks in advance! ... View more