Hello, I was just thinking about the same question. The output in CART shows an overal sensitivity and specificity of the tree built, plus cross-validation result of overall sens and spec. I find this very useful for interpretation of the value of a tree. I didn't find this in the R output?
Greetings, Ward Schrooten Message: 5 Date: Fri, 22 Apr 2005 13:04:44 +0200 From: Uwe Ligges <[EMAIL PROTECTED]> Subject: Re: [R] How to know if a classification tree is predicitve or not? To: Laure Maton <[EMAIL PROTECTED]> Cc: r-help@stat.math.ethz.ch Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=us-ascii; format=flowed Laure Maton wrote: > Hello, > I would like to know how to know if a classification tree is predictive > or not ? > Is it sufficient to analyse results of cross validation? Depends on your interpretation of "predictive", maybe you want to look at stuff like sensitivity and specificity as well. Uwe Ligges > Thanks for your help > Laure Maton > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html