SAS Programming

DATA Step, Macro, Functions and more
BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
liyongkai800
Obsidian | Level 7

Say, I have a program like this, where x1 is a categorical variable with 5 levels, and x2, x3 are continuous variables.

 

proc glm data=mydata;

class x1;

model y=x1 x2 x3;

run;

 

However, I'm pretty sure that only the first 3 levels of x1 are significant to y. Is there any way to only include the first 3 levels of x1 in the model statement? Thanks.

1 ACCEPTED SOLUTION

Accepted Solutions
Reeza
Super User
You can add a WHERE statement to your PROC. In general this works across most procedures.

View solution in original post

2 REPLIES 2
Reeza
Super User
You can add a WHERE statement to your PROC. In general this works across most procedures.
liyongkai800
Obsidian | Level 7
Thanks, I complicate the question too much.

sas-innovate-wordmark-2025-midnight.png

Register Today!

Join us for SAS Innovate 2025, our biggest and most exciting global event of the year, in Orlando, FL, from May 6-9. Sign up by March 14 for just $795.


Register now!

How to Concatenate Values

Learn how use the CAT functions in SAS to join values from multiple variables into a single value.

Find more tutorials on the SAS Users YouTube channel.

SAS Training: Just a Click Away

 Ready to level-up your skills? Choose your own adventure.

Browse our catalog!

Discussion stats
  • 2 replies
  • 691 views
  • 0 likes
  • 2 in conversation