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))

Hmisc: how to increase magnification

One non-obvious thing (at least to me) about Hmisc's xYplot function is that to increase magnification or other parameters of a graph component, you have to do the following.

xlab=list("Condition",cex=2)

I.e., you have to make a list out of the parameter, and add whatever information you need. This works generally for any of the xYplot parameters.