Re: [R] analysis of binomial data with rpart/tree

From: Prof Brian Ripley <>
Date: Tue 16 May 2006 - 19:19:01 EST

rpart allows user-specified splits, so yes, it can.

On Mon, 15 May 2006, Mazerolle, Dan wrote:

> Hi all,
> I am using the rpart library to construct wildlife distribution models.
> As many of the sites that we have sampled have been sampled over many
> years, we would like to evaluate binomial responses (number of years
> that the species was present vs. number of years it was absent at a
> particular site). Does anybody know if the rpart function can evaluate
> binomial responses? If not, are there other R of S-plus functions that
> would be able to handle binomial responses.
> Thanks for your time.
> Dan Mazerolle

Brian D. Ripley,        
Professor of Applied Statistics,
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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