From susscorfa at zonnet.nl  Thu Aug  7 12:20:41 2008
From: susscorfa at zonnet.nl (susscorfa at zonnet.nl)
Date: Thu,  7 Aug 2008 12:20:41 +0200 (CEST)
Subject: [Rd] incorrect usage of glmer crashes R (PR#12375)
Message-ID: <20080807102041.18B8D282C761@mail.pubhealth.ku.dk>

Full_Name: susscorfa
Version: 2.7.1
OS: ubuntu
Submission from: (NULL) (129.125.177.31)


Incorrect implementation of the grouping variable in the function glmer crashes
R

a small example:

require(lme4); 
a<-data.frame(b=rpois(1000,10), c=gl(20,50), d=rnorm(1000,3), e=rnorm(1000,5),
f=rnorm(1000,2)+5);  
glmer(b~d+f|c+(e), family=poisson, data=a)

It crashes R on debian linux (2 independant systems) as well as windows

The correct function usage is:
 glmer(b~d+f+(e|c), family=poisson, data=a)

I suppose it should just eveluate as wrong usage of a function but should not
crash R



[Rd] incorrect usage of glmer crashes R (PR#12375)
susscorfa at zonnet.nl