data BASE_BP (drop=vststcd);
set VS (keep=usubjid vsstresn vststcd);
if vststcd in('DIABP', 'SYSBP');
run;

Which alternative program creates an equivalent BASE_BP data set?

Question

data BASE_BP (drop=vststcd);
 set VS (keep=usubjid vsstresn vststcd);
 if vststcd in('DIABP', 'SYSBP');
run;

Which alternative program creates an equivalent BASE_BP data set?

Accepted Answer

A. proc sort data=VS (keep=usubjid vsstresn vststcd) out=BASE_BP (drop=vststcd);
 where vststcd in('DIABP', 'SYSBP');
 by usubjid;
run;

Answer

B. data BASE_BP;
 set VS (keep=usubjid vsstresn);
 if vststcd in('DIABP', 'SYSBP');
run;

Answer

C. proc sort data=VS (keep=usubjid vsstresn vststcd) out=BASE_BP (drop=vststcd);
 by usubjid;
 if vststcd in('DIABP', 'SYSBP');
run;

Answer

D. data BASE_BP (keep=usubjid vsstresn vststcd);
 set VS (drop=vststcd);
 if vststcd in('DIABP', 'SYSBP');
run;

Question