topic Re: PROC MIXED: Save random coefficients to a dataset in SAS Procedures

PROC MIXED: Save random coefficients to a dataset

EricVanceMartin — Mon, 20 Jun 2016 21:58:18 GMT

It seems that with the option / SOLUTION in the RANDOM statement of PROC MIXED, I can create a table of estimated random coefficients, which I need. I have two questions:

1. How do I, if I can, save them as a dataset?

2. What do the results represent? Are they the estimated coefficients themselves or are they deviations from the mean (the fixed coefficient)? If they are deviations, how do I get the actual coefficient? Is it, for example, FIXED COEFFICIENT - DEVIATION, FIXED COEFFICIENT + DEVIATION, ...?

Thanks!

Re: PROC MIXED: Save random coefficients to a dataset

SteveDenham — Tue, 28 Jun 2016 17:50:17 GMT

A little quick digging through the reference for the RANDOM statement:

1. ods output solutionr=solutionr; will put the values into a dataset

2. The results are EBLUPS for the random effects. A good way to think of them is as residuals of the fixed effects (y minus X * beta hat) times (G hat *Z prime *V hat-inverse), so they are scaled by a quadratic form.

For a quick review, look at Mixed Models Theory in the Details section of the MIXED documentation.

Steve Denham