Criteria to Select a Working Correlation Structure in SAS
The generalized estimating equations (GEE) method is popular for analyzing clustered and longitudinal data. It is important to determine a proper working correlation matrix when applying the GEE method since an improper selection sometimes results in inefficient parameter estimates. In this paper, w...
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| Format: | Article |
| Language: | English |
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Foundation for Open Access Statistics
2014-03-01
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| Series: | Journal of Statistical Software |
| Online Access: | http://www.jstatsoft.org/index.php/jss/article/view/2142 |