Programming the statistical procedures from SAS

Comparing different repeated measures models in SAS

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Comparing different repeated measures models in SAS

Hi,

Say you have a repeated measures study with two repeats (one nested in the other) and you are interested to show that one repeat has a compound symmetry structure while the other is autoregressive (using AIC comparing the model vice-versa or both repeats having the same structure).

Setting up SAS for two repeats is no problem, and setting it up for one and testing if it is Autoregressive or compound symmetry is no problem.  But I can not figure out how to tell SAS to use two repeats one testing for Autoregressiveness and the other for Compound symmetry. Any ideas?

Thank you!

Oded

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