Handout01 Stat3910/4910


Simple SAS Example.  Note the "data step" at the top, the use of the if-then-else
statements, the datalines command, and the Procs.

See pages 3, 7, 

------------------------------------------------------------------------------

data example;
	input subject gender $ exam1 exam2
	hwgrade $;

final = (exam1 + exam2)/2;

If final ge 0 and final lt 65 then grade = 'F';
	else if final ge 65 and final lt 75 then grade ='C';
	else if final ge 75 and final lt 85 then grade ='B';
	else if final ge 85 then grade ='A';

datalines;
10 M  80  84 A
 7 M  85  89 A
 4 F  90  86 B
14 F  88  84 C
;

Proc sort data = example;
	by subject;
run;

Proc means data=example n mean std stderr maxdec=1;
	title 'Descriptive Statistics';
	var exam1 exam2 final;
run;

------------------------------------------------------------------------------

Output:
                                     Descriptive Statistics                                   
                                                            
                                      The MEANS Procedure

                 Variable    N            Mean         Std Dev       Std Error
                 ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ
                 exam1       4            85.8             4.3             2.2
                 exam2       4            85.8             2.4             1.2
                 final       4            85.8             2.6             1.3
                 ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ