Compare distribution of SAME Variable over two data pulls / time

[AmitKB]

Hi all,

             I want to compare the same variable distribution over two data pulls or over time.

               What I want to see if the distribution has changed over time statistically. Can i get KS stats for the variable.

              How would i do it.

                 I appreciate all your help.

Regards,

Amit

[PGStats · Accepted solution]

You can get the tests that you want with npar1way like this :

data test;
do time = 10, 11;
     do i = 1 to 25;
          x = rand("NORMAL", time, 1);
          output;
          end;
     end;
run;

proc npar1way data=test edf;
class time;
var x;
run;

PG