[R] Warning when using survey:::svyglm

Thomas Lumley tlumley at u.washington.edu
Thu Aug 7 01:49:08 CEST 2008

It isn't (and never was) indicative of a problem. You can make the warning 
go away by using quasibinomial() instead of binomial(), as in the example 
on the help page.

Incidentally, it's survey::svyglm (::, not :::)


On Wed, 6 Aug 2008, Ben Domingue wrote:

> Howdy,
> Referencing the below exchange:
> https://stat.ethz.ch/pipermail/r-help/2006-April/103862.html
> I am still getting the same warning ("non-integer #successes in a
> binomial glm!") when using svyglm:::survey.  Using the API data:
> library(survey)
> data(api)
> #stratified sample
> dstrat<-svydesign(id=~1,strata=~stype, weights=~pw, data=apistrat, fpc=~fpc)
> svyglm(sch.wide~meals+acs.core+hsg,dstrat,family="binomial")
> I get:
> Stratified Independent Sampling design
> ...
> Warning message:
> In eval(expr, envir, enclos) : non-integer #successes in a binomial glm!
> Is this still indicative of a problem?  Thanks,
> Ben
> ______________________________________________
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> and provide commented, minimal, self-contained, reproducible code.

Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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