topic Re: %sysfunc(open(dataset)) using where clause doesn't seem to filter in SAS Programming

%sysfunc(open(dataset)) using where clause doesn't seem to filter

Bullfrog — Mon, 30 Sep 2013 21:13:10 GMT

Hello: Can someone help explain to me why this codeset returns a value of 19, instead of 9? For some reason, it's not applying my where clause as I'd expect.

%let dsid = %sysfunc(open(sashelp.class (where=(Sex="F"))));

%let Gender_NOBS =%sysfunc(attrn(&dsid,NOBS));

%let rc = %sysfunc(close(&dsid));

%put Gender Count = &Gender_NOBS;

Thanks!

Re: %sysfunc(open(dataset)) using where clause doesn't seem to filter

LinusH — Mon, 30 Sep 2013 21:46:26 GMT

From online doc:

NOBS

specifies the number of physical observations (including the observations that are marked for deletion). An active WHERE clause does not affect this number.

Re: %sysfunc(open(dataset)) using where clause doesn't seem to filter

ScottBass — Tue, 01 Oct 2013 00:03:12 GMT

I've attached a macro I use to determine the number of observations for various scenarios. Perhaps you'll find it useful. You'll have to modify it to remove the call to %parmv.