Hi
see in line
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Bert
> Gunter
> Sent: Wednesday, February 1, 2017 6:11 AM
> To: CHIRIBOGA Xavier <xavier.chiriboga at unine.ch>
> Cc: r-help at 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.chiriboga at 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
> > Adem?s: 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 at 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 at 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 jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a jsou ur?eny
pouze jeho adres?t?m.
Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho
odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho
syst?mu.
Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email
jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat.
Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i
zpo?d?n?m p?enosu e-mailu.
V p??pad?, ?e je tento e-mail sou??st? obchodn?ho jedn?n?:
- vyhrazuje si odes?latel pr?vo ukon?it kdykoliv jedn?n? o uzav?en? smlouvy, a
to z jak?hokoliv d?vodu i bez uveden? d?vodu.
- a obsahuje-li nab?dku, je adres?t opr?vn?n nab?dku bezodkladn? p?ijmout;
Odes?latel tohoto e-mailu (nab?dky) vylu?uje p?ijet? nab?dky ze strany p??jemce
s dodatkem ?i odchylkou.
- trv? odes?latel na tom, ?e p??slu?n? smlouva je uzav?ena teprve v?slovn?m
dosa?en?m shody na v?ech jej?ch n?le?itostech.
- odes?latel tohoto emailu informuje, ?e nen? opr?vn?n uzav?rat za spole?nost
??dn? smlouvy s v?jimkou p??pad?, kdy k tomu byl p?semn? zmocn?n nebo p?semn?
pov??en a takov? pov??en? nebo pln? moc byly adres?tovi tohoto emailu p??padn?
osob?, kterou adres?t zastupuje, p?edlo?eny nebo jejich existence je adres?tovi
?i osob? j?m zastoupen? zn?m?.
This e-mail and any documents attached to it may be confidential and are
intended only for its intended recipients.
If you received this e-mail by mistake, please immediately inform its sender.
Delete the contents of this e-mail with all attachments and its copies from your
system.
If you are not the intended recipient of this e-mail, you are not authorized to
use, disseminate, copy or disclose this e-mail in any manner.
The sender of this e-mail shall not be liable for any possible damage caused by
modifications of the e-mail or by delay with transfer of the email.
In case that this e-mail forms part of business dealings:
- the sender reserves the right to end negotiations about entering into a
contract in any time, for any reason, and without stating any reasoning.
- if the e-mail contains an offer, the recipient is entitled to immediately
accept such offer; The sender of this e-mail (offer) excludes any acceptance of
the offer on the part of the recipient containing any amendment or variation.
- the sender insists on that the respective contract is concluded only upon an
express mutual agreement on all its aspects.
- the sender of this e-mail informs that he/she is not authorized to enter into
any contracts on behalf of the company except for cases in which he/she is
expressly authorized to do so in writing, and such authorization or power of
attorney is submitted to the recipient or the person represented by the
recipient, or the existence of such authorization is known to the recipient of
the person represented by the recipient.