[Rd] Error while fitting Partial Proportional Odds model using vglm

Gavin Simpson gavin.simpson at ucl.ac.uk
Tue Jul 17 09:34:14 CEST 2007

On Mon, 2007-07-16 at 17:27 -0400, Rizwan Younis wrote:
> Dear R developers:

This is *not* the correct list for help with R or contributed packages
on CRAN, and please do not send your messages repeatedly to any of the
lists - this is at least the 3rd time I've received this request for

If you'd read the posting guide, it would have told you that you should
email the package maintainer (in this case Thomas Yee) for help with a
contributed package. If you must email the R-help list, do so only once.
If you don't get a reply, take the hint that perhaps no-one has an
answer - repeatedly bugging them isn't going to help!

By the looks of things, there is either a problem within VGAM itself
that only Thomas will be able to fix, or you are providing an
argument/data that VGAM was not expecting - there appear to be some
fitting problems also. Check that the data you are providing are what
VGAM expects, and if the problem still persists, email Thomas with a
reproducible example.


Gavin Simpson                     [t] +44 (0)20 7679 0522
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UCL Department of Geography
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