The MEANS Procedure

Example 4: Using a CLASSDATA= Data Set with Class Variables

Procedure features:

PROC MEANS statement options:

	CLASSDATA=
	EXCLUSIVE
	FW=
	MAXDEC=
	PRINTALLTYPES

CLASS statement

Data set:

CAKE

This example

specifies the field width and decimal places of the displayed statistics
uses only the values in CLASSDATA= data set as the levels of the combinations of class variables
calculates the range, median, minimum, and maximum
displays all combinations of the class variables in the analysis.

Program

options nodate pageno=1 linesize=80 pagesize=60;

data caketype;
   input Flavor $ 1-10  Layers 12;
   datalines;
Vanilla    1
Vanilla    2
Vanilla    3
Chocolate  1
Chocolate  2
Chocolate  3
;

proc means data=cake range median min max fw=7 maxdec=0
           classdata=caketype exclusive printalltypes ;

   class flavor layers;

   var TasteScore;
   Title 'Taste Score For Number of Layers and Cake Flavor';
run;

Output

PROC MEANS calculates statistics for the 13 chocolate and vanilla cakes. Because the CLASSDATA= data set contains 3 as the value of Layers, PROC MEANS uses 3 as a class value even though the frequency is zero.

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PROC MEANS calculates statistics for the 13 chocolate and vanilla cakes. Because the CLASSDATA= data set contains 3 as the value of Layers, PROC MEANS uses 3 as a class value even though the frequency is zero.