Re: [R] Overdispersion in the lmer models

2008-10-13 Thread David Winsemius
age- From: David Winsemius [mailto:[EMAIL PROTECTED] Sent: maandag 13 oktober 2008 3:42 To: Fucikova, Eva Cc: r-help@r-project.org Subject: Re: [R] Overdispersion in the lmer models Have you considered using glm() with family = "quasipoisson" or family = quasibinomial ? I know from

Re: [R] Overdispersion in the lmer models

2008-10-12 Thread David Winsemius
Have you considered using glm() with family = "quasipoisson" or family = quasibinomial ? I know from experience that the quasipoisson choice reports an index of dispersion. ?family -- David Winsemius On Oct 12, 2008, at 4:55 AM, Fucikova, Eva wrote: Dear All, I am working with linear m

[R] Overdispersion in the lmer models

2008-10-12 Thread Fucikova, Eva
Dear All, I am working with linear mixed-effects models using the lme4 package in R. I created a model using the lmer function including some main effects, a three-way interaction and a random effect. Because I work with a binomial and poisson distribution, I want to know whether there is over