Shravan Vasishth's Slog (Statistics blog)

Saturday, April 28, 2007

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

Tuesday, April 17, 2007

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))