hello sir, when am using else if statement along with length function, am getting two equal to symbols(==) and text cursor jumping back.   data dt1; x='ukunk'; if length(x)=5 then y = 'correct'; else if length(x)= 3 then y ='incorrect'; run;   and when am using if statement along with substr function am getting two letters (kk,uu,dd) and text cursor jumping back.   data dt2; x='ukunk'; if substr(x,1,5)='ukunk' then y = 'correct'; run;   am getting issues in these to programs, please correct me.   ... View more