Simple bug in lmer: reliably crashes R
I have just uploaded lme4_0.99875-9 to CRAN's incoming directory. This version generates an error when trying to fit a model with terms that reduce to (0|grp). Thanks for the report.
On 10/13/07, Nathaniel Smith <njs at pobox.com> wrote:
There seems to be a minor input-validation bug in lme4 0.99875-8, where fitting a model with (0 | ...) crashes R. To reproduce:
library(lme4) frame <- data.frame(A=1:100, B=1:100, C=rep(1:10, 10) lmer(A ~ B + (0 | C), frame)
Process R floating point exception at Sat Oct 13 01:26:25 2007 Obviously the workaround is "don't do that then", but it would probably be good to fix at some point.