[R] Problem with offset (Glm or glmD) in Design library

[Frank E Harrell Jr]

On 07/15/2010 07:59 AM, Claus Dethlefsen / Region Nordjylland wrote:
> Dear List
>
> My question relates to the rms (or Design) package. I have modified
> the example from help(Glm) to include an offset argument. It works
> with "glm" but "Glm" gives the error
>
> Error in if (!length(fname) || !any(fname == zname)) { : missing
> value where TRUE/FALSE needed
>
>
> # -- begin example library(rms) of<- 100:92
>
> counts<- c(18,17,15,20,10,20,25,13,12) outcome<- gl(3,1,9)
> treatment<- gl(3,3) f<- glm(counts ~ outcome + treatment,
> family=poisson(),offset=of) f anova(f) summary(f) f<- Glm(counts ~
> outcome + treatment, family=poisson(),offset=of) # -- end example

That should be counts ~ outcome + treatment + offset(of)

Frank

>
> The same error occurs using glmD from the Design package.
>
> I use R version 2.11.1 for Windows and have installed the "rms"
> package together with Design and Hmisc.
>
> Is this a bug or am I missing something?
>
> Best regards,
>
> Claus ---------------------------------------- Claus Dethlefsen, MSc,
> PhD Biostatistician at Center for Cardiovascular Research Aalborg
> Hospital, Aarhus University Hospital, Denmark
>
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-- 
Frank E Harrell Jr   Professor and Chairman        School of Medicine
                      Department of Biostatistics   Vanderbilt University