1. Creating the Example Data

2. The full data set
proc contents data=fram.fram40;run;

3. Select a sample of specified size keeping only the variables desired.
/*select a random sample of size 15*/
proc surveyselect data=fram.fram40(keep=spf1-spf5)
out=ftmp
method=srs
sampsize=15
seed=54321 ;
run;

4. Assign an id to each observation
/*assign a meaningless id*/
data ftmp;
length id 8;
set ftmp;
id=_n_;
run;

5. Examine the data set
proc print data=ftmp;run;

6. Changing the descriptor portion PROC DATASETS
/*get rid of labels and formats*/
proc datasets lib=work memtype=data;
modify ftmp;
attrib _all_ label=' ';
attrib _all_ format=;
quit;

7. Sort the data in random order
/*do a random sort on data*/
data ftmp;
set ftmp;
call streaminit( );
ranx=rand("uniform");
id=_n_;
run;
proc sort data=ftmp;by ranx;run;

8. Create 5 separate files
/*create a separate file for each of the exams*/
data sbp1(keep=id spf1 rename=(spf1=sbp))
sbp2 (keep=id spf2 rename=(spf2=sbp))
sbp3 (keep=id spf3 rename=(spf3=sbp))
sbp4 (keep=id spf4 rename=(spf4=sbp))
sbp5 (keep=id spf5 rename=(spf5=sbp)) ;
set ftmp;
output sbp1;
output sbp2;
output sbp3;
output sbp4;
output sbp5;
run;

9. Examine Results proc contents data=sbp1;run;