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+s789695n4546022h28@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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