Mixed models – Part 2: lme lmer

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Getting more into mixed models, I’ve been playing around with both nlme::lme and lme4::lmer. http://tolstoy.newcastle.edu.au/R/e2/help/06/10/3345.html was quite a good post at explaining the differences, which from what I gather is largely performance based when using crossed or partially crossed models.

In the models I am tinkering with at the moment I am noticing differences in the standard deviations for the coefficients, which is alarming, but I’ll continue to dig around.


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