[R] an unknown error message when using gamm function

[Simon Wood]

Could you try upgrading to the current version of mgcv, please? looking in the 
`changeLog' there were a couple of fixed problems that could be causing this.

On Wednesday 21 May 2008 16:14, Lung-Chang Chien wrote:
> The version is mgcv 1.3-27. Last night, I dropped out many arguments from
> my program to test which part
> might be the source of causing this error message, and found that the
> program works when just using corAR1().
>
> This program has no this kind of problem in the beginning, but doesn't work
> after I impute some missing data
> in PM10 and tmean by multiple imputation approach. Hope this information
> can also help identify the
> element of this problem.
>
> LC
>
> > From: Simon Wood <s.wood at bath.ac.uk>
> > To: r-help at r-project.org
> > Date: Wed, 21 May 2008 08:55:02 +0100
> > Subject: Re: [R] an unknown error message when using gamm function
> > What version of mgcv are you using, please?
> >
> > On Wednesday 21 May 2008 06:16, Lung-Chang Chien wrote:
> > Dear everyone,
> >
> > I'm encountering an unknown error message when using gamm function:
> > >         fitoutput <-
> >
> > gamm(cvd~as.factor(dow)+pm10+s
>
> (time,bs="cr",k=15,fx=TRUE)+s(tmean,bs="cr",k
>
> >=7,fx=TRUE) +
>
> ,correlation=corAR1(form=~1|city),family=poisson,random=list(city=~pm10),da
>
> >ta=mimp)
> >
> >
> >  Maximum number of PQL iterations:  20
> > iteration 1
> > iteration 2
> > iteration 3
> > iteration 4
> > iteration 5
> > iteration 6
> > Error in `*tmp*`[[k]] : attempt to select less than one element
> >
> > I never saw this error message before, and there is also no related
> > information about this error from the Internet. Hope some people who once
> > encountered this problem can tell me what's wrong.
> >
> > Many thanks,
> >
> > LC

-- 
> Simon Wood, Mathematical Sciences, University of Bath, Bath, BA2 7AY UK
> +44 1225 386603  www.maths.bath.ac.uk/~sw283