How to recode variables in table 1 using info from table 2 (in SAS)

Question

The overal goal is to stratify quantitative variables based on their percentile. I would like to break it up into 10 levels (e.g. 10th, 20th, ...100th percentile)

Answer 1

A different option - PROC RANK. You could probably make it more 'automated' but it's pretty straightforward. Using PROC RANK you could also specify different ways of dealing with ties. Note that it would go from 0 to 9 rather than 1 to 10 but that's trivial to change.

data test (drop=i);
do i=1 to 1000;
a=round(uniform(1)*4,.01);
b=round(uniform(1)*10,.01);
c=round(uniform(1)*7.5,.01);
output;
end;
stop;
run;

proc rank data=test out=want groups=10;
var a b c;
ranks rankA rankB rankC;
run;