topic Re: PROC ANOVA MEANS to get p-values for comparison in Statistical Procedures

PROC ANOVA MEANS to get p-values for comparison

lizzy28 — Thu, 27 Sep 2018 16:08:41 GMT

Hi all,

Thank you for your attention first of all!

I am running PROC ANOVA with MEANS statement to get group means as below:

proc anova data=indat;

class classvar;

model cost = classvar;

means classvar /tukey;

run;

The Tukey test generates the table of difference between means along with 95% CI. However, I need to have specific p-values per difference between means.

Is there a way to list out the specific p-values?

Thanks a lot!

Lizi

Re: PROC ANOVA MEANS to get p-values for comparison

Rick_SAS — Thu, 27 Sep 2018 16:21:39 GMT

It sounds like you want an all pairwise comparison of the mean differences. You can use the LSMEANS statement in PROC GLM and the PDIFF=ALL option, as shown in the article "The diffogram and other graphs for multiple comparisons of means." The article includes an example, links to the documentation, and even a discussion of how to visualize the mean differences.

Re: PROC ANOVA MEANS to get p-values for comparison

lizzy28 — Tue, 02 Oct 2018 13:22:06 GMT

Thanks a lot!