From ryszard.czerminski at pharma.novartis.com  Wed Dec 10 16:49:09 2003
From: ryszard.czerminski at pharma.novartis.com (ryszard.czerminski@pharma.novartis.com)
Date: Wed Dec 10 16:49:02 2003
Subject: [Rd] e1071:svm - default epsilon = 0.1 (NOT 0.5) (PR#5671)
Message-ID: <OF8761315A.7AD4EBF7-ON85256DF8.005696ED-85256DF8.0056FFD3@EU.novartis.net>

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)
ryszard.czerminski@pharma.novartis.com