Hi see in line
> -----Original Message----- > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Bert > Gunter > Sent: Wednesday, February 1, 2017 6:11 AM > To: CHIRIBOGA Xavier <xavier.chirib...@unine.ch> > Cc: r-help@r-project.org > Subject: Re: [R] HELP with GLM > > Dear Xavier: > > It sounds like you have a right mess! Perhaps others cleverer and more > diligent than I can sort through it and diagnose the problem. However, it > really *does* sound like you need to step back, take a deep breath, and > spend some time with an R tutorial or two (there are many good ones on teh > web) to learn how R works before proceeding further. You seem to be > groping around in the dark. > > Cheers, > Bert > Bert Gunter > > "The trouble with having an open mind is that people keep coming along and > sticking things into it." > -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) > > > On Tue, Jan 31, 2017 at 6:35 PM, CHIRIBOGA Xavier > <xavier.chirib...@unine.ch> wrote: > > Dear colleagues, > > > > > > I am trying to perform GLM ..but I got some objects masked: and an > > error message below > > > > > > a <- read.table(file.choose(), h<-T) > >> head(a) > > time treatment transinduc > > 1 1 CHA0+Db 1,0768 > > 2 1 CHA0+Db 1,0706 > > 3 1 CHA0+Db 1,0752 > > 4 1 CHA0+Db 1,0689 > > 5 1 CHA0+Db 1,1829 > > 6 1 PCL+Db 1,1423 >> attach(a) Attach can be problematic as you have probably objects named time, transinduc, ... etc in your environment. However your glm problem is that you do not have numbers in your data but factors. What you think that are numbers they are not, which is clearly seen from your summary(a) Your read table should have parameter dec=",". Cheers Petr > > The following objects are masked from a (pos = 12): > > > > time, transinduc, treatment > > > > The following objects are masked from a (pos = 13): > > > > time, treatment > > > > The following objects are masked from a (pos = 14): > > > > time, treatment > > > >> summary(a) > > time treatment transinduc > > Min. :1.000 CHA0 :10 1,0488 : 6 > > 1st Qu.:1.000 CHA0+Db: 9 1,0724 : 4 > > Median :1.000 Db : 9 1,0752 : 3 > > Mean :1.433 HEALTHY:15 1,0954 : 3 > > 3rd Qu.:2.000 PCL :10 1,0001 : 2 > > Max. :2.000 PCL+Db :14 1,0005 : 2 > > (Other):47 > > > > > > m1<-glm(transinduc~time*treatment,data=a,family="poisson") > > Error in if (any(y < 0)) stop("negative values not allowed for the 'Poisson' > family") : > > valor ausente donde TRUE/FALSE es necesario > > Además: Warning message: > > In Ops.factor(y, 0) : '<' not meaningful for factors > > > > > > I DO NOT HAVE NEGATIVE VALUES IN MY DATASET, Do you know what is > going wrong? > > > > > > Thank you for you help, > > > > > > Xavier > > > > [[alternative HTML version deleted]] > > > > > > ______________________________________________ > > 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. > > ______________________________________________ > 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. ________________________________ Tento e-mail a jakékoliv k němu připojené dokumenty jsou důvěrné a jsou určeny pouze jeho adresátům. 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