topic Re: Identifying Observations in SAS Programming

Identifying Observations

SamuelRajKandru — Fri, 19 Aug 2016 17:38:00 GMT

DO we have to use NOOBS while using ID?

Re: Identifying Observations

Reeza — Fri, 19 Aug 2016 17:41:09 GMT

You haven't provided enough info regarding your problem.

Please explain your question in more detail.

Re: Identifying Observations

SamuelRajKandru — Fri, 19 Aug 2016 18:10:27 GMT

Ummm, I was going through Chapter 4 of the SAS Cert Prep Guide. So inorder to eradicate the OBS column, we use a NOOBS. My question is, do we have to write the NOOBS in the code even when we use an ID statement? Or is it not necessary to mention the NOOBS in the code while using the ID statement?

Re: Identifying Observations

PGStats — Fri, 19 Aug 2016 18:33:16 GMT

I guess you are talking about proc print. I think using a ID statement implies option NOOBS, since the ID variable is supposed to provide observation identification. Compare:

proc sort data=sashelp.class out=class; by sex name; run;

proc print data=class; by sex; run;
proc print data=class; by sex; id sex; run;
proc print data=class noobs; by sex; id sex; run;