[R] Problem with rpart

Wensui Liu liuwensui at gmail.com
Tue Sep 19 18:18:33 CEST 2006


Not sure what your problem is based on your email.

But data volume is not a problem if there is only 1400 obs and 15 predictors.

On 9/19/06, Andrew Zachary <Andrew.Zachary at wetherbypartnersllc.com> wrote:
> Not sure if anyone has posted on this problem ... I want to use rpart to
> build a binary tree on a relatively large dataset with ~1400 data points
> and 15 predictors. But I've noticed that rpart fails almost immediately
> in the call to C_s_to_rp, as that code returns nonsense. Looking at the
> code itself isn't terribly helpful, and there don't seem to be any hard
> limits coded anywhere. Does anyone have a suggestion for what might be
> going on?
> Thanks in advance for you help
> Andrew Zachary
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WenSui Liu
Senior Decision Support Analyst
Health Policy and Clinical Effectiveness
Cincinnati Children Hospital Medical Center

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