okay here is a sample code: data want;
set have;
a=.; b=.; c=.; d=;
if (typ_ill = :"cerv" or typ_ill= :"oval") then sex=2 ;
else if( typ_ill= :"pen" or typ_ill= :"test") then sex =1;
else if (typ_ill ^=:"cerv" or typ_ill ^= :"oval" or typ_ill ^= :"pen" or typ_ill ^= :"test")
then do ;
sex= rand("integer", 1, 2);
put sex;
end;
if ( a=.) and (b=.) then do;
a=rand("integer", 1, 12);
b=rand("integer", 1980, 2000);
c= rand("integer", 1, 2);
d= rand("integer", 1999, 2019);
output;
end;
if x= "8000" and a="0" and y= " " then
do;
y=rand("integer" 0, 7);
do while( y=3);
y=rand("integer" 0, 7);
end;
output;
end;
run;
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