Rpart has a built in cross-validation proceedure. the xerror and so on
are based on a ten fold cross validation, I believe. Read the manual
for more results. If you plot the fit with post and then look at the
postscript file it should have a misclassification rate under the
terminal nodes.
HTH,
Stephen
On Mon 23 Apr 2012 02:58:37 AM CDT, Mariam wrote:
Hi, Jorge!
Help me please! I made a classification tree (rpart package) according to my
train data and set of variables. How can I validate my test data? I want to
check if the test data will classified properly by the same tree. Thanks
cheers
Maria
Tue, 10 Apr 2012 08:44:39 -0700 (PDT) от "Jorge I Velez [via
R]"<ml-node+s789695n4546022...@n4.nabble.com>:
Hi Mariam,
Check out the ?poly function.
Best,
Jorge.-
On Tue, Apr 10, 2012 at 10:12 AM, Mariam<> wrote:
People, help me please!
How to use lm() function to defind a cofficient for 7-polinom, and what
expression should I put in /formula/
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Stephen Sefick
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Auburn University
Biological Sciences
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Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems of being mammals.
-K. Mullis
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