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* From SAS ESSENTIALS                           *
* (C) Elliott, Alan C. and Woodward, Wayne A.   *
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DATA HEIGHTS; 
INPUT FAMILY GENDER$ HEIGHT @@; 
DATALINES; 
   1 F 67   1 F 66   1 F 64   1 M 71   1 M 72   2 F 63 
   2 F 63   2 F 67   2 M 69   2 M 68   2 M 70   3 F 63 
   3 M 64   4 F 67   4 F 66   4 M 67   4 M 67   4 M 69 
ODS HTML;
PROC MEANS MAXDEC=2 MEAN DATA=HEIGHTS;
     CLASS FAMILY GENDER;
	 VAR HEIGHT;
RUN;
PROC MIXED; 
	CLASS FAMILY GENDER; 
	MODEL HEIGHT = GENDER; 
 	RANDOM FAMILY FAMILY*GENDER; 
RUN;
ODS HTML CLOSE;