topic Re: PROC Mixed- Normality test SAS in New SAS User

PROC Mixed- Normality test SAS

cmcg1 — Tue, 22 Mar 2022 11:48:19 GMT

Hello,

Is there anyway to test for normality on Proc Mixed other than the graphs, such as a shapiro-wilk test? i.e is there anyway to get a figure for normaility?

Re: PROC Mixed- Normality test SAS

PaigeMiller — Tue, 22 Mar 2022 12:02:19 GMT

You can save the residuals from PROC MIXED, and then test normality of the residuals in one of many ways:

Probability Plots (also called P-P plots)
Q-Q Plots
Shapiro-Wilk test
Kolmogorov-Smirnov test
Anderson-Darling test
Cramér-von Mises test
and probably others

Re: PROC Mixed- Normality test SAS

cmcg1 — Thu, 24 Mar 2022 17:35:57 GMT

Is there away to perform this just for the random effects as well?