PROC MIXED: WEIGHT Statement :: SAS/STAT(R) 9.22 User's Guide

The MIXED Procedure

WEIGHT Statement

WEIGHT variable ;

If you do not specify a REPEATED statement, the WEIGHT statement operates exactly like the one in PROC GLM. In this case PROC MIXED replaces $\text{[math]}$ and $\text{[math]}$ with $\text{[math]}$ and $\text{[math]}$ , where $\text{[math]}$ is the diagonal weight matrix. If you specify a REPEATED statement, then the WEIGHT statement replaces $\text{[math]}$ with $\text{[math]}$ , where $\text{[math]}$ is a diagonal matrix with elements $\text{[math]}$ . Observations with nonpositive or missing weights are not included in the PROC MIXED analysis.

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