overdisp: Check overdispersion of GLMM's
Description
This function checks generalized linear mixed models for
overdispersion. Currently, only merMod objects
are supported.Arguments
x
Fitted mixed effects model (merMod-class). Value
- Information on the overdispersion test. If the p-value is larger than
0.05, no overdispersion is present. A p-value lower than 0.005
suggests overdispersion.
Details
This function is based on the code in the
http://glmm.wikidot.com/faq{DRAFT r-sig-mixed-models FAQ},
section How can I deal with overdispersion in GLMMs?.
Note that this function only returns an approximate estimate
of an overdispersion parameter.References
http://glmm.wikidot.com/faq{DRAFT r-sig-mixed-models FAQ}