Re: [R] Questions bout SVM

2010-01-03 Thread Steve Lianoglou
2010/1/2 Nancy Adam nancyada...@hotmail.com: Hi Steve, Thanks a lot for your reply. 1)I’m still confused which equation (1- sqrt(mean(mymodel$MSE)) OR 2- mean(sqrt(mymodel$MSE)) )is equivalent to sqrt(mean(error**2))? So, as I mentioned before, mymodel$MSE is a vector that's as long as the

Re: [R] Questions bout SVM

2010-01-02 Thread Steve Lianoglou
Hi, On Fri, Jan 1, 2010 at 1:03 PM, Nancy Adam nancyada...@hotmail.com wrote: Hi everyone, Can someone please help me in these questions?: 1)if I use crossvalidation with svm, do I have to use this equation to calculate RMSE?:      mymodel - svm(myformula,data=mydata,cross=10)      

Re: [R] Questions bout SVM

2010-01-02 Thread Nancy Adam
only the last column on the testing set?Many thanks,Nancy Date: Sat, 2 Jan 2010 17:32:44 -0500 Subject: Re: [R] Questions bout SVM From: mailinglist.honey...@gmail.com To: nancyada...@hotmail.com CC: r-help@r-project.org Hi, On Fri, Jan 1, 2010 at 1:03 PM, Nancy Adam nancyada

[R] Questions bout SVM

2010-01-01 Thread Nancy Adam
Hi everyone, Can someone please help me in these questions?: 1)if I use crossvalidation with svm, do I have to use this equation to calculate RMSE?: mymodel - svm(myformula,data=mydata,cross=10) sqrt(mean(mymodel$MSE)) But if I don’t use crossvalidation, I have to use the