[R-sig-eco] (no subject)

[Thierry Onkelinx]

Your model is probabily too complex for your data. try to simplify the
model (or get more data).

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and
Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium

To call in the statistician after the experiment is done may be no more
than asking him to perform a post-mortem examination: he may be able to say
what the experiment died of. ~ Sir Ronald Aylmer Fisher
The plural of anecdote is not data. ~ Roger Brinner
The combination of some data and an aching desire for an answer does not
ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey

2015-10-06 7:24 GMT+02:00 Rajendra Mohan Panda <rmp.iit.kgp at gmail.com>:

> Dear All
>
> I get following error in some of my datasets while using VGAM package.
>
> Error in backsolve(Rmat, rinv) :
>   singular matrix in 'backsolve'. First zero in diagonal [1057]
>
> Kindly advise how to tackle this error.
>
> My formula reads like this: vgam(cbind(list of species)~s()+s(),
> binomialff(multiple.responses = TRUE,, bred = TRUE), Trace = TRUE, maxit =
> TRUE)
>
> Your kind response is highly appreciated.
>
> Best Regards
> Rajendra M Panda
> School of Water Resources
> Indian Institute of Technology Kharagpur
>
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>
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