Error with glmer when nesting students in school
I expect this is the same as https://stat.ethz.ch/pipermail/r-sig-mixed-models/2009q1/002081.html I can understand Dougs reluctance to change this, as it would allow some silly things. A compromise might be to improve the error message to explain that lmer thinks the model is overparameterised and allow the user to force these models to be fitted. eg forcefit=TRUE as a parameter. Ken
On 10/07/2009, at 5:24 AM, Christopher David Desjardins wrote:
Hi, I am running a model where my outcome variable is a count variable (# of suspensions) and I am trying to nest students (id.f) within school (schno.f). When I run this model I get the following error: glmer.quad.sch <- glmer(sus ~ (grade)^2 + male*(grade)^2 + sped*(grade)^2 + ethnic*(grade)^2 + risk*(grade)^2 + (1+ (grade)^2 | schno.f/id.f), family=poisson, nAGQ=1, data= enroll.long.ting) Error message: Error in mer_finalize(ans) : q = 209642 > n = 175975 Calls: system.time ... glmer -> do.call -> <Anonymous> -> mer_finalize -> .Call Execution halted I am treating both id.f and schno.f as factors as glmer wouldn't run without them. Thanks, Chris
sessionInfo()
R version 2.9.1 (2009-06-26) i386-apple-darwin8.11.1 locale: en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] lme4_0.999375-31 Matrix_0.999375-29 lattice_0.17-25 loaded via a namespace (and not attached): [1] grid_2.9.1 -- Christopher David Desjardins Ph.D. Student Quantitative Methods in Education Department of Educational Psychology University of Minnesota http://cddesjardins.wordpress.com/
_______________________________________________ R-sig-mixed-models at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models