based on your code "fit <- glm(abundance~Gender,data=teminfest,family=binomial())", i don't see anything related to quasi_poisson. are you sure what you are doing here?
On Tue, Jul 28, 2015 at 1:33 AM, Charlotte <charlotte.hu...@griffithuni.edu.au> wrote: > Hello > > I have count values for abundance which follow a pattern of over-dispersal > with many zero values. I have read a number of documents which suggest that > I don't use data transforming methods but rather than I run the GLM with the > quasi poisson distribution. So I have written my script and R is telling me > that Y should be more than 0. > > Everything I read tells me to do it this way but I can't get R to agree. > Did I need to add something else to my script to get it to work and keep my > data untransformed? The script I wrote is as follows: > >> fit <- glm(abundance~Gender,data=teminfest,family=binomial()) > > then I get this error > Error in eval(expr, envir, enclos) : y values must be 0 <= y <= 1 > > I don't use R a lot so I am having trouble figuring out what to do next. > > I would appreciate some help > > Many Thanks > Charlotte > > > > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/R-wont-accept-my-zero-count-values-in-the-GLM-with-quasi-poisson-dsitribution-tp4710462.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- WenSui Liu https://statcompute.wordpress.com/ ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
