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2003 Oct 21
2
Denominator Degrees of Freedom in lme() -- Adjusting and Understanding Them
...was wondering if there is any way to adjust the denominator degrees of freedom in lme(). It seems to me that there is only one method that can be used. As has been pointed out previously on the list, the denominator degrees of freedom given by lme() do not match those given by SAS Proc Mixed or HLM5. Proc Mixed, for example, offers five different options for computing the denominator degrees of freedom. Is there anyway to make such specifications in lme(), so that the degrees of freedom will correspond with the output given from Proc Mixed. I've looked at Pinheiro and Bates' Mixed-...