ods pdf file="H:\_ODS\SAS_ACT_10_Output.pdf" notoc;

/*  SAS Activity #10 */

/*  Save data into your library */


/* #1 Create simple random sample from entire dataset
     */
proc surveyselect data=bio.computer
   method=srs n=450 out=bio.computer_SRS;
run;

/* #2 Create new variable for random treatment assignment.  
     */

data bio.computer_SRS;
set bio.computer_SRS;
TRT = floor(2.99*ranuni(0)+1);
run;

/* #3 Create side-by-side boxplots for Age and Computer use by treatement
     */

proc sgplot data=bio.computer_SRS;
vbox age / category=trt ;
run;


proc sgplot data=bio.computer_SRS;
vbox comp / category=trt ;
run;


/* #4 Create frequency tables for gender by treatment
     */
proc freq data=bio.computer_SRS;
tables gender*trt ;
run;

ods pdf close;