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Dear all, I'm using gam models to test for a by-factor interaction and then plotting the results using vis.gam(). The y variable is binomial and I use models of this sort: Mod1<-gam(y~Factor+te(x1...

Thanks! I had seen this section but hadn't understood that the dashed line represented the mean. Does that mean in my case (two tests hardly significant P=0.03 and one NS) that I should reject the hypothesis of...

Thanks heaps to Ben Bolker and Dave Fournier for their answers and suggestions! I have tried several of the suggestions made by Ben Bolker and here is what I get: 1) Using the zipme function, I get the following error...

Hi and thanks again for your answer. I have just a last question regarding the choice of the functional...if you have time to help on that again. I have tried running the sctest using the functionals you recommended sctest...

Thanks Simon...it's always clearer when you say it!!! Geraldine -----Original Message----- From: Simon Wood [mailto:s.wood at bath.ac.uk] Sent: 27. april 2012 12:41 To: Mabille, Geraldine Cc: r-help at r-project.org Subject...

Thanks a lot for your answer Achim, this helped a lot. I have done a lot of reading, following your recommendations and I think I have a better idea of what I should use. My dataset contains binary data on...

Thanks Simon for your help again on those points. Just a last thing, regarding the third question: If the gm1 model has a lower AIC than the gm model, does that mean that we should "select" for it?? As you...