Hello, Max
  The caret package is so good, I am learning it, but one problem is that 
nearZeroVar function can be used to identify near zero–variance variables and 
it only identify, how can I remove those variables that were identify, because 
I have many zero- or near zero- ones, it is not realistic to removel it by 
hand, can this function can identify and removel those ones automatically?
 
looking for your reply.
 
kevin



在2009-12-19,"Max Kuhn [via R]" <ml-node+975038-1351220...@n4.nabble.com> 
写道: -----原始邮件-----
发件人:"Max Kuhn [via R]" <ml-node+975038-1351220...@n4.nabble.com>
发送时间:2009年12月19日 星期六
收件人:bbslover <dlu...@yeah.net>
主题:Re: [R] Hello all, How can I get corss-validation MSE of SVM in e1071?

You can get this using the caret package. There are a few package 
vignettes that come with the package and a JSS article 

 http://www.jstatsoft.org/v28/i05/paper

about the package. 

Max 

On Fri, Dec 18, 2009 at 12:26 PM, bbslover <[hidden email]> wrote: 

> 
> as known, svm need tune some parameters like  cost,gamma and epsilon to get 
> better performance,but one question appear, how can i monitor the 
> performance . generally speaking ,we chose the cross-validation MSE in the 
> training set, but It seems svm can not return the cross-validation MSE 
> value, we just get it from "summary model.svm", if I write a loop, have no 
> idear call the cros-validate MSE, and no way to monitor this performance 
> ,how can I do? 
> 
> 
> -- 
> View this message in 
> context:http://n4.nabble.com/Hello-all-How-can-I-get-corss-validation-MSE-of-SVM-in-e1071-tp974942p974942.html
> Sent from the R help mailing list archive at Nabble.com. 
> 
> ______________________________________________ 
>[hidden email]mailing list 
>https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code. 
> 



-- 

Max 

______________________________________________ 
[hidden email]mailing list 
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code. 



View message 
@http://n4.nabble.com/Hello-all-How-can-I-get-corss-validation-MSE-of-SVM-in-e1071-tp974942p975038.html
To unsubscribe from Hello all, How can I get corss-validation MSE of SVM in 
e1071?,click here. 


-- 
View this message in context: 
http://n4.nabble.com/Hello-all-How-can-I-get-corss-validation-MSE-of-SVM-in-e1071-tp974942p975955.html
Sent from the R help mailing list archive at Nabble.com.

        [[alternative HTML version deleted]]

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to