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Hello, I really like the interface and flexibility of the ggplots package. However, I cannot find how to add text to a plot (like the 'text' and 'rect' functions in the graphics package). I will appreciate any suggestions. Thanks, Ofir...
I'm looking for a way to create bar charts with nested groups levels. I have data that is seperated to this factors: 1. Day part - day/night. 2. Season - summer/winter. 3. habitat - Cover/Open I have created in...
Hello R users, Doing My PhD I collected count data which I believe is zero inflated. I have run a statistical model with lmer and family=poisson and got summary(model)@sigma=1 so I believe there is no overdispertion...
For getting the p-values from a lmer object you need to use the pvals.fnc() function. do the following: library(lme4) library(languageR) lnmass <- lmer(log.mass ~ treatment + (1|block), data=exp1) pvals.fnc(lnmass, nsim=10000) See the...
Thank you very much Ben. I took you advice and run the lmer model with family="quasipoisson" and got sigma~10. I guess this means that the data has overdispertion but not too high (>15) for me to must use...
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