data contraceptive;
input case control count @@;
cards;
1 1 10 1 2 57 2 1 13 2 2 95
;
run;

proc format;
  value casefm 1='yes'
               2='no';

  value controlfm 1='yes'
                  2='no';    

proc freq;
 weight count;
 tables case*control/norow nocol nopercent agree;
 format case casefm. control controlfm.;
 Title 'Example of McNemars Test';   
 Title2 'Example 6.19 pp. 209-210 of Fisher & van Belle';

run;