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APPLIED MULTIVARIATE STATISTICS: WITH SAS® SOFTWARE by Dayanand N. Naik, Ravindra Khattree

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6.3. An Overview of the MIXED Procedure

PROC MIXED, available in SAS/STAT, can be used to analyze data under the model stated earlier in Equation 6.1. To describe the choices available in PROC MIXED, we will follow the notations used above. More details can be found in SAS/STAT Software: Changes and Enhancements through Release 6.12.

Consider the following mixed effects model defined earlier in Equation 6.1,

The first statement that invokes this procedure is

proc mixed;

The inferential approach in the MIXED procedure is predominantly likelihood based. The multivariate normality assumptions as stated in the previous section are needed. The ML ...

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