extracting fixed effect from lme4 objects (coefplot2 not available)
Hans Ekbrand <hans.ekbrand at ...> writes:
I have used the function coeftab() from the package coefplot2 for extracting fixed effects with confidence intervals from lme4 objects. However, for coefplot is currently not available from r-forge (the last build, 2012-09-10 failed). fixef() gives me the estimates, but how do I get the confidence intervals too?
Something like
transform(as.data.frame(coef(summary(fm1))),
lwr=Estimate-1.96*`Std. Error`,upr=Estimate+1.96*`Std. Error`)
should work (these are the same confidence intervals as those
returned by coeftab).
Thanks for calling my attention to the fact that coefplot2 was
broken on r-forge (due to recent changes in ggplot2). A fixed version
is up and should be available shortly.
Ben Bolker