Re: [R] Questions bout SVM

2010-01-03 Thread Steve Lianoglou
2010/1/2 Nancy Adam : > 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 number of folds yo

Re: [R] Questions bout SVM

2010-01-02 Thread Nancy Adam
odel will use 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

Re: [R] Questions bout SVM

2010-01-02 Thread Steve Lianoglou
Hi, On Fri, Jan 1, 2010 at 1:03 PM, Nancy Adam 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) >      sqrt(mean(mymodel$MS

[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 foll