title 'Test COMPUTE expressions'.

data list /w 1-3(a).
begin data.
123
456
919
572
end data.
*string y z(a6).
*compute y=ltrim(lpad(w,6,'*'),'*').
*compute z=rtrim(rpad(w,6,'*'),'*').
string z(a6).
compute x=number(w).
compute y=number(w,f8).
compute z=lpad(rpad(substr(string(x,f6),4,1),3,'@'),6,'*').
compute y=y+1e-10.
if(x<=456) y=500.
select if x<=456.
compute #caseseq=#caseseq+1.
list.
list.