Displaying 20 results from an estimated 30000 matches similar to: "variable selection methods for SVMs"
2004 May 06
1
modifying the text size in splom
All,
I have long variable names that are being fed through splom (R 1.8.1). I'd
like to resize the text printed on the diagonals to better display the
names (unless anyone can suggest another approach - creative use of
varnames). I've looked at the code, R-Help, ?splom and the Trellis User's
Guide to no avail.
Any suggestions? Thanks in advance,
Max Kuhn, Ph.D.
Becton Dickinson
2004 Feb 04
0
Job opportunity
I'm pleased to announce that my employer, Becton Dickinson, has an open
position for software implementation in the Matlab and S languages. If
interested, send a cover letter and resume (or CV) to Dr. Richard Moore at
richard_moore at bd.com. If you have questions, contact myself (at
jim_garrett at bd.com) or Dr. Moore.
Below find a position description.
Jim Garrett
Becton Dickinson
2012 Nov 16
1
polynomial svms and in-sample error
Hi again!
This might be more of a statistical question, but anyway:
If i train several support vector machines with different degrees of polynomials, and as result, get that higher degrees not only have a higher test error, but also a higher in-sample error, why is that?
I would assume i should get an in-sample error lower or at least the same as the linear case.
i'm worried i did
2010 Sep 29
0
caret package version 4.63
Version 4.63 of the caret package is now on CRAN.
caret can be used to tune the parameters of predictive models using
resampling, estimate variable importance and visualize the results.
There are also various modeling and "helper" functions that can be
useful for training models.
caret has wrappers to over 99 different models for classification
and regression. See the package vignettes
2010 Sep 29
0
caret package version 4.63
Version 4.63 of the caret package is now on CRAN.
caret can be used to tune the parameters of predictive models using
resampling, estimate variable importance and visualize the results.
There are also various modeling and "helper" functions that can be
useful for training models.
caret has wrappers to over 99 different models for classification
and regression. See the package vignettes
2010 May 17
0
looking for Variable selections models, techniques, methods
We still have a long way to go with the data we were given by some drug discovery scientists.
The problem is to select the few variables (Collective Variables), from a set of variables sampled during a
Molecular Dynamics simulation, which exhibit a consistent and coherent relationship with the given minimum-work
curve, all over the time it takes the molecule to migrate from the initial
2004 Mar 30
2
Sweave and graphic output locations
Hello,
I'm using R1.8.1 on windows 2000 and version 1.8.1 of the tools package.
I am attempting to have Sweave write files to a different directory via:
testfile <- system.file("Sweave", "Sweave-test-1.Rnw",
package = "tools")
## create a LaTeX file
Sweave(
testfile,
output = "C:/temp/Sweave-test-1.tex",
2015 Apr 17
2
mailbox deletion is not replicated correctly
On 16.04.2015 20:32, Timo Sirainen wrote:
> On 16 Apr 2015, at 19:22, Dennis Kuhn <d.kuhn at heinlein-support.de> wrote:
>>
>> i can't delete several folders at once. I have a folder structure like
>> folder1/folder2/folder3 (we use slash as hierarchy separator). When i
>> delete folder1 server1 executes the command correctly
>>
>>
>> Apr 16
2004 Dec 10
0
strange gee behavior
I'm using R 1.9.1 on suse server v9 enterprise with the gee package version
4.13-10.
I have code that runs in an automated script. It uses the gee function from
the gee package. The script is run quite often without error.
I have a problem where the script locks up R when calling this function (it
starts execution and never finishes). I was able to track down the
offending data and determine
2015 Jul 14
0
mailbox deletion is not replicated correctly
On 04/17/2015 12:07 PM, Dennis Kuhn wrote:
> On 16.04.2015 20:32, Timo Sirainen wrote:
>> On 16 Apr 2015, at 19:22, Dennis Kuhn <d.kuhn at heinlein-support.de> wrote:
>>> i can't delete several folders at once. I have a folder structure like
>>> folder1/folder2/folder3 (we use slash as hierarchy separator). When i
>>> delete folder1 server1 executes
2015 Apr 16
2
mailbox deletion is not replicated correctly
i can't delete several folders at once. I have a folder structure like
folder1/folder2/folder3 (we use slash as hierarchy separator). When i
delete folder1 server1 executes the command correctly
Apr 16 13:44:28 server1 dovecot: imap(d.kuhn at heinlein-support.de):
Mailbox deleted: INBOX/Trash/folder1/folder2/folder3
Apr 16 13:44:28 server1 dovecot: imap(d.kuhn at heinlein-support.de):
2015 Apr 16
0
mailbox deletion is not replicated correctly
On 16 Apr 2015, at 19:22, Dennis Kuhn <d.kuhn at heinlein-support.de> wrote:
>
> i can't delete several folders at once. I have a folder structure like
> folder1/folder2/folder3 (we use slash as hierarchy separator). When i
> delete folder1 server1 executes the command correctly
>
>
> Apr 16 13:44:28 server1 dovecot: imap(d.kuhn at heinlein-support.de):
>
2011 Sep 01
1
Newer Matrix Factorization Techniques
Hi,
I am not sure if this should go to r-help or r-dev list. I have looked
at some archives of R libraries but cannot seem to see a project that
focuses on the new matrix factorization techniques that are showing up
in the literature. I have made a list of them:
https://sites.google.com/site/igorcarron2/matrixfactorizations
they include Robust PCA, Dictionnary Learning, Sparse PCA and are
2009 Apr 15
2
Sweave and executive summaries
I'm learning to use R/Sweave/LaTeK to write my stat reports. Is there a way
to have an executive summary in the beginning while still having the
analysis code embedded? For example, a study has three independent
objectives so I want my report to have three sections. Ideally the code
chunk that answers the first objective would be embedded in the first
section and so on.
2011 Sep 26
0
Off topic -- A BAD idea. Was: Boxplot BUT with Mean, SD, Max & Min ?
>
> > On the original question though, why isn't there something "off the
> shelf"
> > that will do what I want? Surely, a "boxplot" using mean, SD, max and
> min
> > would be a common enough need to justify it?
> >
>
> Gabor Grothendieck replied:
> tarr is not a list or a data frame. Use.data.frame(tarr) so that it
> uses
2004 Jan 05
1
non-generic functions
Hi,
I'm writing some code that will eventually see its way to a package (I
hope). I've noticed that some functions are not set up using generic
methods (while similar functions are). For example, mean is a generic
method but var is not. Other operations that I've come across that could
benefit from being generic are: qqplot, cor, cov, optimize/optimise.
For example, if one were
2012 Nov 19
2
Classification methods - which one?
Dear all,
i searched for some classification methods and I have no glue if i took the right once.
My problem: I have a matrix with 17000 rows and 33 colums (genes and patients). The patients are grouped into 3 diseases.
No I want to classify the patients and for sure i want to know which rows are more helpful for the classification than others.
I tried SVM and random forest. Do you think this
2012 Mar 22
0
New package RcppSMC 0.1.0 for Sequential Monte Carlo and Particle Filters
===== Summary =====
Version 0.1.0 provides the initial release of RcppSMC, an integration of the
SMCTC template classes for Sequential Monte Carlo and Particle Filters
(Johansen, 2009, J Statistical Software, 30:6) with the Rcpp package for R/C++
Integration (Eddelbuettel and Francois, 2011, J Statistical Software, 40:8).
RcppSMC allows for easier and more direct access from R to the
2012 Mar 22
0
New package RcppSMC 0.1.0 for Sequential Monte Carlo and Particle Filters
===== Summary =====
Version 0.1.0 provides the initial release of RcppSMC, an integration of the
SMCTC template classes for Sequential Monte Carlo and Particle Filters
(Johansen, 2009, J Statistical Software, 30:6) with the Rcpp package for R/C++
Integration (Eddelbuettel and Francois, 2011, J Statistical Software, 40:8).
RcppSMC allows for easier and more direct access from R to the
2012 Mar 22
1
GSOC : Language Modelling for information retrieval with Diversified Search results
Hello,
I am a undergraduate student at DA-IICT,India pursuing Btech in
Information and Communication Technology.Major field of my Research is
Information Retrieval and Natural Language processing. xapain being an
powerful Information retrieval library have attracted me towards
implementing stuff learned in class for this project.I have worked on
entity search on RDF data,SMS based FAQ