search for: manyglm

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2012 Feb 21
0
mvabund package: errors using manyglm() and meanvar.plot()
...r model, there is no problem. All the following statements give the desired result. > lm<-manylm(mvform) > anova(lm,nBoot=500) > plot(lm) However, because these are count data, I am interested in fitting a generalized linear model instead, but then I get following error: > glm<-manyglm(mvform,family="negative.binomial") > anova(glm,nBoot=500) Error in XvarIn[nterms - i, varseq > i] <- 0 : (subscript) logical subscript too long Also, when trying to create diagnostics plots, I get the following error. > plot(glm) Error in plot.window(...) : need finite ...
2013 Jun 07
0
error running mvabund package
...ck.names=TRUE) vegtype=as.factor(vegtype$vegtype) plot(cplflorabund~vegtype) #there is a column called "treatment", and another called "block" plot.mvabund(cplflorabund) ##Fitting predictive models transect=as.factor(transect$transect) flormat=as.matrix(florabund) abund.nb <-manyglm(flormat~transect*vegtype, family="nagative.binomial") predict(abund.nb, type= "response") ##Checking Model Assumptions plot(abund.nb) meanvar.plot(flormat~transect, col=as.numeric (vegtype)) #direct plot of mean-variace relationship anova(abund.nb, p.uni="adjusted&qu...