374-2008: PROC MIXED: Underlying Ideas with Examples

1 Paper 374-2008 PROC mixed : Underlying Ideas with Examples David A. Dickey, NC State University, Raleigh, NC ABSTRACT The SAS procedure mixed provides a single tool for analyzing a large array of models used in statistics, especially experimental design, through the use of REML estimation. A strategy for identifying mixed models is followed by a description of REML estimation along with a simple example that illustrates its advantages. A comparison of some of the available tests for variance components is given along with several Examples , both real and artificial, that illustrate the variety of models handled by PROC mixed . INTRODUCTION mixed models include a wide array of useful statistical approaches, some new and some quite old.

Oct 11, 2012 · 1 Paper 374-2008 PROC MIXED: Underlying Ideas with Examples David A. Dickey, NC State University, Raleigh, NC ABSTRACT The SAS ® procedure MIXED provides a single tool for analyzing a large array of models used in statistics, especially experimental design, through the use of REML estimation.

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