topic Re: Selecting observations from a variable without PRINT or DATA step in Statistical Procedures

Selecting observations from a variable without PRINT or DATA step

Mruizv — Sun, 10 Apr 2022 01:02:57 GMT

Trying to run a T test (not paired) but my variable "group" has 3 levels. (A/B/C)

How can I select only 2 without using a print or data step?

My current observations are stacked 10 of each

PROC ttest data=example;
title "T Tests";
class group;
var x y;
RUN;

Re: Selecting observations from a variable without PRINT or DATA step

Tom — Sun, 10 Apr 2022 05:09:45 GMT

Your description is not at all clear.

If you want to limit the data used by PROC TTEST use a WHERE statement.

For example if GROUP has value A, B, C, D and you want to test A against B then add

where group in ('A' 'B');

To your program.

Re: Selecting observations from a variable without PRINT or DATA step

Mruizv — Sun, 10 Apr 2022 11:48:24 GMT

I have a previously created data step, but in my actual program I am not allowed to create one. So I can read it from the PROC TTEST, wasn't aware I could use the WHERE statement inside.

I have to test group A and B vs X and Y