Hi
Could you please explain the line that I got from the documentation of R? does
it mean that there is a difference between using and not using the formula
interface with SVM ?:
If the predictor variables include factors, the formula interface must be used
to get a correct model matrix.
hi,
could you please tell me what kind of cross validation that SVM of e1071 uses?
Cheers,
Amy
_
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Hi,
Could you please tell me whether SVM can do multiple regression or not?
Cheers,
Amy
_
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> To: amy_4_5...@hotmail.com
> CC: r-help@r-project.org
> Subject: Re: [R] Error in object$tables[[v]] : subscript out of bounds
>
>
>
> On 14.03.2010 19:12, Amy Hessen wrote:
> >
> >
> >
> >
> > Hi Uwe,
> > Thanks for
> Date: Sun, 14 Mar 2010 15:30:36 +0100
> From: lig...@statistik.tu-dortmund.de
> To: amy_4_5...@hotmail.com
> CC: r-help@r-project.org
> Subject: Re: [R] Error in object$tables[[v]] : subscript out of bounds
>
>
>
> On 14.03.2010 11:55, Amy Hessen wrote:
> >
>
Hi,
Could you please tell me how I correct the following error message?
Error in object$tables[[v]] : subscript out of bounds
This is the code:
library(e1071)
data(iris)
attach(iris)
class_label <- names(iris)[1]
myformula <- formula(paste(class_label,"~ ."))
mymodel<-naiveBayes(myform
Hi,
Could you please tell me whether there is a difference in the result of svm
when using formula instead of class label?
Cheers,
Amy
_
Browse profiles for FREE! Meet local singles onli
Hi Steve,
Could you please tell me what I should change in this equation: accuracy <-
sum(mytest == mytestdata[,1]) / length(mytest)In order to compute the accuracy
of SVM when using cross validation?Cheers,Amy
_
ink() when you're done writing to a particular file.
>
>
> - Phil Spector
> Statistical Computing Facility
> Department of Statistics
> UC Berkeley
> spec...@stat.berkeley.edu
>
>
> On Sun, 28 Feb 2010, Amy Hessen wrote:
>
> >
> >
>
Hi,
After some runs to my program, I receive this error message:
Error in sink("output.txt") : sink stack is full
Could you please tell me how I can avoid this message?
Cheers,
Amy
_
Vi
Hi,
Im trying to install ipred package but I receive the following error message:
library(ipred)
Loading required package: rpart
Loading required package: MASS
Loading required package: mlbench
Error: package 'mlbench' could not be loaded
In addition: Warning messages:
1: package 'ipred' wa
@r-project.org
>
> Hi Amy,
>
> On Sat, Feb 20, 2010 at 9:29 PM, Amy Hessen wrote:
> > Hi ,
> >
> > Could you please help me in this question:?
> >
> > After trying this code:
> >
> > library(e1071)
> > mydata <- as.matrix(read.
@r-project.org
>
> HI Amy,
>
> On Wed, Feb 3, 2010 at 1:56 AM, Amy Hessen wrote:
> >
> > Hi Steve,
> >
> > Could you please help me in this point?:
> >
> > I use SVM of R and Im trying some datasets from UCI but when I compare the
> > results
t; To: amy_4_5...@hotmail.com
> CC: r-help@r-project.org
>
> Hi,
>
> On Fri, Feb 12, 2010 at 3:00 PM, Amy Hessen wrote:
> >
> > Hi,
> > Every time I run a svm regression program, I got different RMSE value.
> > Could you please tell me what the reason fo
Hi,
Every time I run a svm regression program, I got different RMSE value.
Could you please tell me what the reason for that?
Cheers,
Amy
_
If it exists, you'll find it on SEEK. Australia
gmail.com; r-help@r-project.org
> Subject: Re: [R] svm
>
> On Thu, 4 Feb 2010, Amy Hessen wrote:
>
> >
> >
> > Hi Steve,
> >
> >
> >
> > Thank you very much for your reply.
> >
> > Could you please guide me to any helpful refe
svm
> From: mailinglist.honey...@gmail.com
> To: amy_4_5...@hotmail.com
> CC: r-help@r-project.org
>
> HI Amy,
>
> On Wed, Feb 3, 2010 at 1:56 AM, Amy Hessen wrote:
> >
> > Hi Steve,
> >
> > Could you please help me in this point?:
> >
> > I u
ist.honey...@gmail.com
> To: amy_4_5...@hotmail.com
> CC: r-help@r-project.org
>
> Hi,
>
> On Fri, Jan 8, 2010 at 11:57 AM, Amy Hessen wrote:
> > Hi Steve,
> >
> > Thank you very much for your reply. Your code is more readable and obvious
> > than mine
Hi,
I developed my program using SVM from R language and using some datasets from
machine learning repository (UCI).
Can anyone please tell me how I can get the results of any other machine
learning algorithm that uses the same datasets in order to compare these
results with my results?
Hi,
Could you please tell me whether there are feature selection algorithms in R or
not such as genetic algorithms? If so, could you please tell me in which
package?
Cheers,
Amy
_
View
> From: mailinglist.honey...@gmail.com
> To: amy_4_5...@hotmail.com
> CC: r-help@r-project.org
>
> Hi,
>
> On Fri, Jan 8, 2010 at 11:57 AM, Amy Hessen wrote:
> > Hi Steve,
> >
> > Thank you very much for your reply. Your code is more readable and obvious
>
ect.org
>
> Hi Amy,
>
> On Wed, Jan 6, 2010 at 4:33 PM, Amy Hessen wrote:
> > Hi Steve,
> >
> > Thank you very much for your reply.
> >
> > Im trying to do something systematic/general in the program so that I can
> > try different datasets without ch
; Date: Tue, 5 Jan 2010 21:15:17 -0500
> Subject: Re: [R] svm
> From: mailinglist.honey...@gmail.com
> To: amy_4_5...@hotmail.com
> CC: r-help@r-project.org
>
> Hi,
>
> On Tue, Jan 5, 2010 at 7:01 PM, Amy Hessen wrote:
> >
> > Hi,
> >
> > I underst
Hi,
I understand from help pages that in order to use a data set with svm, I have
to divide it into two files: one for the dataset without the class label and
the other file contains the class label as the following code:-
library(e1071)
x<- read.delim("mydataset_except-class-label.txt")
y<
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