topic How to get Confidence Intervals in Proc ANOVA in Statistical Procedures

How to get Confidence Intervals in Proc ANOVA

Sassybanana — Sat, 02 Apr 2022 19:02:39 GMT

Here is the code, what do I need to add to get CI in the output

Re: How to get Confidence Intervals in Proc ANOVA

PaigeMiller — Sat, 02 Apr 2022 21:18:34 GMT

Confidence intervals for what?

If you want confidence intervals for the mean of a level, you can use the MEANS statement with the CLM option. https://documentation.sas.com/doc/en/pgmmvacdc/9.4/statug/statug_anova_syntax10.htm

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Re: How to get Confidence Intervals in Proc ANOVA

Rick_SAS — Mon, 04 Apr 2022 13:48:29 GMT

To get confidence limits for the group means, use the CLM option on the MEANS statement. To get confidence limits for the regression parameters, switch to PROC GLM and use the SOLUTION and CLPARM options, as follows:

proc anova data=sashelp.class;
class sex;
model height = sex;
means sex / clm;   /* CL for group means */
run;

proc glm data=sashelp.class;
class sex;
model height = sex / solution clparm;  /* CL for regression parameters */
quit;