From david.meyer at ci.tuwien.ac.at  Wed Dec 10 16:59:54 2003
From: david.meyer at ci.tuwien.ac.at (David Meyer)
Date: Wed Dec 10 16:58:55 2003
Subject: [Rd] e1071:svm - default epsilon = 0.1 (NOT 0.5) (PR#5671)
In-Reply-To: <OF8761315A.7AD4EBF7-ON85256DF8.005696ED-85256DF8.0056FFD3@EU.novartis.net>
	(from ryszard.czerminski@pharma.novartis.com on Wed, Dec 10,
	2003 at 16:49:09 +0100)
References: <OF8761315A.7AD4EBF7-ON85256DF8.005696ED-85256DF8.0056FFD3@EU.novartis.net>
Message-ID: <20031210155954.GK17438@boromir.ci.tuwien.ac.at>

Ryszard:

the *package* version (e1071) is relevant here, not the version number  
of R. Actually, the documentation bug you have reported has already  
been fixed in 1.3-14 (which is the current version on CRAN).

Best,

David

On 2003.12.10 16:49, ryszard.czerminski@pharma.novartis.com wrote:
> In 1.8.0 seems to be 0.5 in documentation....
> 
> > ?svm
> svm                  package:e1071                  R Documentation
> 
> Support Vector Machines
> 
> Description:
> 
>      'svm' is used to train a support vector machine. It can be used
> to
>      carry out general regression and classification (of nu and
>      epsilon-type), as well as density-estimation. A formula  
> interface
>      is provided.
> 
> Usage:
> 
>      ## S3 method for class 'formula':
>      svm(formula, data = list(), ..., subset, na.action =
>      na.omit, scale = TRUE)
>      ## Default S3 method:
>      svm(x, y = NULL, scale = TRUE, type = NULL, kernel =
>      "radial", degree = 3, gamma = 1 / dim(x)[2], coef0 = 0, cost =  
> 1,
> nu
> = 0.5,
>      class.weights = NULL, cachesize = 40, tolerance = 0.001, epsilon
> =
> 0.5,
>      shrinking = TRUE, cross = 0, fitted = TRUE, ..., subset,
> na.action =
> na.omit)
> 
> > R.version
>          _
> platform i686-pc-linux-gnu
> arch     i686
> os       linux-gnu
> system   i686, linux-gnu
> status
> major    1
> minor    8.0
> year     2003
> month    10
> day      08
> language R
> 
> 
> R
> 
> 
> 
> 
> 
> David Meyer <david.meyer@ci.tuwien.ac.at>
> 12/10/2003 10:18 AM
> 
> 
>         To:     Ryszard Czerminski/PH/Novartis@PH
>         cc:     r-devel@stat.math.ethz.ch, R-bugs@biostat.ku.dk
>         Subject:        Re: [Rd] e1071:svm - default epsilon = 0.1
> (NOT 0.5) (PR#5671)
> 
> 
> On 2003.12.10 15:13, ryszard.czerminski@pharma.novartis.com wrote:
> > In e1071 package/svm default epsilon value is set to 0.1 and not  
> 0.5
> > as documentation says.
> 
> Fixed in 1.3-15 (set to 0.1).
> 
> g.,
> David
> 
> 
> 
> 
>


[Rd] e1071:svm - default epsilon = 0.1 (NOT 0.5) (PR#5671)
David Meyer