h no parameter
> tuning at all, do you?
>
> Try:
>
> m2 <- best.svm(class~., data=spiral, gamma=2^(-3:3), cost=2^(0:5))
> plot(m2, spiral)
>
> Andy
>
> From: Joshua Gilbert
> >
> > I'm using an SVM as I've seen a paper that reported extremely goo
I'm using an SVM as I've seen a paper that reported extremely good
results. I'm not having such luck. I'm also interested in ideas for
other approaches to the problem that can also be applied to general
problems (no assuming that we're looking for spirals).
Here is my code:
library(mlbench)
librar
Hi.
I'm trying to plot a pair of intertwined spirals and an svm that
separates them. I'm having some trouble. Here's what I tried.
> library(mlbench)
> library(e1071)
Loading required package: class
> raw <- mlbench.spirals(200,2)
> spiral <- data.frame(class=as.factor(raw$classes), x=raw$x[,1],
Hi.
I'm trying to plot a pair of intertwined spirals and an svm that
separates them. I'm having some trouble. Here's what I tried.
> library(mlbench)
> library(e1071)
Loading required package: class
> raw <- mlbench.spirals(200,2)
> spiral <- data.frame(class=as.factor(raw$classes), x=raw$x[,1],
Hi.
I'm trying to plot a pair of intertwined spirals and an svm that
separates them. I'm having some trouble. Here's what I tried.
> library(mlbench)
> library(e1071)
Loading required package: class
> raw <- mlbench.spirals(200,2)
> spiral <- data.frame(class=as.factor(raw$classes), x=raw$x[,1],
On 6/17/05, Prof Brian Ripley <[EMAIL PROTECTED]> wrote:
> On Thu, 16 Jun 2005, Joshua Gilbert wrote:
>
> > I need to compute generalized eigenvalues. The eigen function in base
> > doesn't do it and I can't find a package that does.
>
> They are very r
ess Lapack from R
and use those routines directly?
Thank you,
Joshua Gilbert.
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
bout code in a contributed package, please send
> it to the package maintainer (as the posting guide asks).
>
> On Sat, 11 Jun 2005, Joshua Gilbert wrote:
>
> > This is true, they are equal. I hadn't noticed that. Thank you.
> >
> > Now, if lda fails on this given inpu
h identical means'? Lda is not protected against that
> and it is rather unlikely unless you failed to inspect your data in any
> way.
>
> On Fri, 10 Jun 2005, Joshua Gilbert wrote:
>
> > This question appears to have been asked previously, but no
This question appears to have been asked previously, but not answered.
the last response I can find to this previous thread is here:
http://tolstoy.newcastle.edu.au/R/help/04/07/0126.html. The asnwer was
to provide debugging info, not an answer.
So the problem is that I'm trying to use lda on my d
10 matches
Mail list logo
