Allowed quasibinomial links (PR#8851)

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Allowed quasibinomial links (PR#8851)

Henric Nilsson
Full_Name: Henric Nilsson
Version: 2.3.0 Patched (2006-05-09 r38014)
OS: Windows 2000 SP4
Submission from: (NULL) (83.253.9.137)


When supplying an unavailable link to `quasibinomial', the error message looks
strange. E.g.
> quasibinomial("x")
Error in quasibinomial("x") : 'x' link not available for quasibinomial family,
available links are "logit", ", ""probit" and "cloglog"
                          ^^^^^^^^
Clearly, something's missing. A quick peek in the code reveals that `log' is
allowed, but is missing from the above list.

Furthermore, shouldn't `quasibinomial' also allow the `cauchit' link?

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Re: Allowed quasibinomial links (PR#8851)

Prof Brian Ripley
This was already corrected in R-devel (including allowing cauchit): I have
moved the relevant part of the fix to R-patched now.

On Wed, 10 May 2006, [hidden email] wrote:

> Full_Name: Henric Nilsson
> Version: 2.3.0 Patched (2006-05-09 r38014)
> OS: Windows 2000 SP4
> Submission from: (NULL) (83.253.9.137)
>
>
> When supplying an unavailable link to `quasibinomial', the error message looks
> strange. E.g.
>> quasibinomial("x")
> Error in quasibinomial("x") : 'x' link not available for quasibinomial family,
> available links are "logit", ", ""probit" and "cloglog"
>                          ^^^^^^^^
> Clearly, something's missing. A quick peek in the code reveals that `log' is
> allowed, but is missing from the above list.
>
> Furthermore, shouldn't `quasibinomial' also allow the `cauchit' link?

--
Brian D. Ripley,                  [hidden email]
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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