[R] hierarchical clustering

hi there! i am searching for a possibility to plot the cluster fusion number against the distance in hierarchical clustering. i used the following code: distances = dist(my data[, c(1:11)], method="euclidean") eward = hclust(distances, method="ward") plot(eward, labels=my data[, 12], hang=0,cex

[R] attribute evaluation

Hey there! I am searching for an attribute evaluation algorithm (such as based on Info gain, Gain ratio or Chi squared statistics). Is something like that available in R? Thanks for your reply. Best regards, Julia -- __ R-help@r-project.org mailing

Re: [R] NAIVE BAYES with 10-fold cross validation

richt > Datum: Tue, 30 Oct 2007 17:03:49 -0400 > Von: "Kuhn, Max" <[EMAIL PROTECTED]> > An: "Julia Kröpfl" <[EMAIL PROTECTED]>, r-help@r-project.org > Betreff: RE: [R] NAIVE BAYES with 10-fold cross validation > > am trying to implement the code of

[R] NAIVE BAYES with 10-fold cross validation

hi there!! i am trying to implement the code of the e1071 package for naive bayes, but it doens't really work, any ideas?? i am very glad about any help!! i need a naive bayes with 10-fold cross validation: code: library(e1071) model <- naiveBayes(code ~ ., mydata) tune.control <- tune.control

Re: [R] Q-type factor analysis

lumns than rows) and therefore get an error message. Any ideas what to do? Thx for your help, I really appreciate it! Julia Original-Nachricht > Datum: Fri, 12 Oct 2007 23:38:01 +0300 > Von: "Kenn Konstabel" <[EMAIL PROTECTED]> > An: "Julia Kr

[R] Q-type factor analysis

Hallo! Is there a package in R that does Q-type factor analysis? I know how to do principal component analysis, but haven't found any application of Q-type factor analysis. Thx, Julia -- Pt! Schon vom neuen GMX MultiMessenger gehört? Der kanns mit allen: http://www.gmx.net/de/go/multimesse

[R] similarity measure for two different clusters

Hey there! I would like to justify the stability of the cluster of a subset of my data by comparing it to another cluster of another subset. Does there exist a quantitative similarity measure that can be applied? I am open for any suggestions, thx for your help, Julia -- _

[R] pseudo code

Hey there! I got a pseudo code and don't know how to apply it to R, maybe someone can help me: Input: A dataset X, kmax: maximum number of clusters, num_subsamples: number of subsamples. Output: S(i; k) - a distribution of similarities between partitions into k clusters of a reference clusteri

[R] finding a stable cluster for kmeans

Hallo! I applied kmeans to my data: kcluster= kmeans((mydata, 4, iter.max=10) table(code, kcluster$cluster) If I run this code again, I get a different result as with the first trial (I understand that this is correct, since kmeans starts randomly with assigning the clusters and therefore the

[R] 10- fold cross validation for naive bayes(e1071)

Hallo! I would need a code for 10-fold cross validation for the classifiers Naive Bayes and svm (e1071) package. Has there already been done something like that? I tried to do it myself by applying the tune function first: library(e1071) tune.control <- tune.control(random =F, nrepeat=1, repea