Re: [R] SVM functions

2010-10-06 Thread Mike Marchywka



I'm not sure if you want general literature or R-specific answers.
In any case, check either source below and you may have better
luck contacting authors as many may use R but not be on this list.



> Date: Wed, 6 Oct 2010 06:28:02 -0700
> From: nikkiha...@gmail.com
> To: r-help@r-project.org
> Subject: Re: [R] SVM functions
>
>
> What are the ways by which one can validate the SVM results and its
> significance? Are there any papers or articles regarding my question? Please
> do let me know.

for open ended research with no leads, gscholar is ok or use this,




>
> Thank you.
>





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Mike Marchywka | V.P. Technology

415-264-8477
marchy...@phluant.com

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Re: [R] SVM functions

2010-10-06 Thread Neeti

What are the ways by which one can validate the SVM results and its
significance? Are there any papers or articles regarding my question? Please
do let me know.

Thank you.

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Re: [R] SVM functions

2010-10-06 Thread Neeti

hi,

Thanks for this suggestion. svm function in e1071 is working fine. 

As I want multi classification, I would like to understand the differences
in these packages and the results (based on the parameter).  So that it
would be easy to select the best package for my data.


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Re: [R] SVM functions

2010-10-06 Thread Michael Green
Hi,

I don't know why your package does not work, but if you only want access
to an SVM, you can use the svm function in the e1071 package instead.

Cheers,
Michael

-Original Message-
From: Neeti [mailto:nikkiha...@gmail.com] 
Sent: 5. oktober 2010 12:43
To: r-help@r-project.org
Subject: [R] SVM functions



Hi !

Right now I am learning to use svm functions available in R and trying
to
use these function with given example. I was stuck with svmlight
function
which is available in klaR package. Any help would be appreciated
regarding
this function.

1.   I am unable to use svmlight( ) which is available in package:
klaR.
Although I have downloaded klaR_0.6-3 package from
http://cran.r-project.org/web/packages/klaR/index.html web site, the
function is giving me the following error.


>m1<-klaR::svmlight(Species~.,data=iris)
Error in file(con, "r") : cannot open the connection
In addition: Warning message:
In file(con, "r") :
  cannot open file '_model_1.txt': No such file or directory

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Re: [R] SVM functions

2010-10-05 Thread Uwe Ligges



On 05.10.2010 18:19, Neeti wrote:


It would be nice if you suggest me the steps to check whether svmlight is
present in my system or not?


If you have not installed it, it is probably not present yet. How to 
check it: Well, that depends on your OS that is unstated so far.


Asking a search engine for "svmlight" points you to

http://www.cs.cornell.edu/People/tj/svm_light/

from where you can get and install it.

Uwe Ligges

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Re: [R] SVM functions

2010-10-05 Thread Neeti

It would be nice if you suggest me the steps to check whether svmlight is
present in my system or not?
-- 
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http://r.789695.n4.nabble.com/SVM-functions-tp2955768p2956384.html
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Re: [R] SVM functions

2010-10-05 Thread Uwe Ligges

Probably you do not have svmlight installed on your machine.

Uwe Ligges




On 05.10.2010 12:42, Neeti wrote:



Hi !

Right now I am learning to use svm functions available in R and trying to
use these function with given example. I was stuck with svmlight function
which is available in klaR package. Any help would be appreciated regarding
this function.

1.   I am unable to use svmlight( ) which is available in package: klaR.
Although I have downloaded klaR_0.6-3 package from
http://cran.r-project.org/web/packages/klaR/index.html web site, the
function is giving me the following error.



m1<-klaR::svmlight(Species~.,data=iris)

Error in file(con, "r") : cannot open the connection
In addition: Warning message:
In file(con, "r") :
   cannot open file '_model_1.txt': No such file or directory



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and provide commented, minimal, self-contained, reproducible code.