OK. See this. data x;
input Lab $ Drug $ Response;
cards;
Marley Coinhibitor 157
Marley THI 201
Johnson Coinhibitor 214
Marley Coinibitor 112
Johnson THI 345
Marley THI 342
Johnson Coinhibitor 247
Marley THI 345
;
run;
proc format ;
value fmt
100-<200='100-200'
200-<300='200-300'
300<-400='300-400'
;
run;
options missing=0;
proc freq data=x ;
tables lab*drug*response/list missing nopercent nocum;
format response fmt.;
run;
Ksharp
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