Rlang mailing list

Roger Levy has created a possibly useful wiki for exchanging questions about the use of R for language research:

https://ling.ucsd.edu/mailman/listinfo.cgi/r-lang

How to choose between a multiplicity of sexy models

It's websites like this that give model selection such a bad reputation in science:

http://www.modelselection.org/

Nice introduction to R

http://heather.cs.ucdavis.edu/~matloff/r.html

A blog most amazing

I just found a most astounding blog via Gelman's blog:

http://emotion.inrialpes.fr/~dangauthier/blog/

How to extract SEs from lmer fixed effects estimates

Extracting fixed effects coefficients from lmer is easy:

fixef(lmer.fit)

But extracting SEs of those coefficients is, well, trivial, but you have to know what to do. It's not obvious:

Vcov <- vcov(lmer.fit, useScale = FALSE)
se <- sqrt(diag(Vcov))