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>Ben Bolker <bolker <at> ufl.edu> writes: > >I would try > >fligner.test(dT ~ Topology:Drift:lambda) > >in response to: > >Javier Acuna <javier.acuna.o <at> gmail.com> writes: > > Hi, I'm a new user of R. My background is Electrical Engineering, so > please bear with me if this is a silly question. > > I'm trying to assess whether the results of an experiment satisfy the > hypothesis of homosc...

...ained for bartlett.test. At this point I don't know if I'm using the test incorrectly or something else. I would really appreciate any help. I'm using R version 2.7.2 (2008-08-25) in Windows XP. Many thanks in advance Javier ---------------------------------------------------- Javier Acuna Electrical Engineering Grad Student Universidad de Chile javier.acuna.o at gmail.com

Subject: Eliminate repeated components from a vector X-Mailer: VM 7.00 under 21.4 (patch 6) "Common Lisp" XEmacs Lucid Reply-To: fjmolina at lbl.gov FCC: /home/f/.xemacs/mail/sent Does anyone know how I can eliminate repeated elements from a vector?

Hello, Does anybody know if the outscale option of randomForest yields the standarized version of the outlier measure for each case? or the results are only the raw values. Also I have notice that this measure presents very high variability. I mean if I repeat the experiment I am getting very different values for this measure and it is hard to flag the outliers. This does not happen with two other

I was wandering if anybody ever tried to compare the classification accuracy of nnet to other (rpart, tree, bagging) models. From what I know, there is no reason to expect a significant difference in classification accuracy between these models, yet in my particular case I get about 10% error rate for tree, rpart and bagging model and 80% error rate for nnet, applied to the same data. Thanks.

Hi, I would like to find some methods about feature selection, but I only know the package "randomForest" after searching for a while. Could you recommend some other packages of feature selection? Thank you very much. Sincerely yours, Chad Yang. ==========================================================

...nd tokens design) and Weka (specifically Knowledge flow environment) machine learning/data mining software. She is using only the tools provided by tcl/tk (active tcl). I wonder if somebody else has built such kind of environment for a R package, and which tools has used? Best, Edgar Acuna CASTLE group UPR-Mayaguez -- Open WebMail Project (http://openwebmail.org)

Friends, Is there a Partial Least Squares package implemented in R? Thanks, Lana [[alternative HTML version deleted]]

Hi all, I originally posted this to the bioconductor group, but maybe it's better suited to the r-help... I'm using som() to partition samples of gene expression data into clusters. The point is to classify control vs. experimental cases (sample clustering). The original matrix was 22283 x 8. The 8 samples have 4 controls and 4 experimentals. I transposed the matrix so that its dim

...cheers, Rolf ###################################################################### Attention:\ This e-mail message is privileged and confid...{{dropped:9}} ------------------------------ Message: 21 Date: Sun, 21 Sep 2008 17:01:18 -0400 From: " Javier Acu?a " <javier.acuna.o@gmail.com> Subject: Re: [R] Unexpected behaviour when testing for independence, with multiple factors To: bolker@ufl.edu, r-help@r-project.org Message-ID: <e10c29610809211401i6e3d7792p22b72172993aae9a@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 >Ben Bolker &l...