search for: chessel

This is a general statistics question so I'm sorry if its outside the field of r help. Anyway, I have a suite of female and male traits and I have made a matrix of correlation coefficients using rcorr(). This results in a 6 by 6 matrix like this.. [1] 0.11287990 0.20441361 0.23837442 0.04713234 0.04331637 0.01461611 [7] 0.22627981 0.11720108 0.14252307 0.19531625 0.29989953 0.09989502

new R package FactoClass to combine factorial methods and cluster analysis is uploaded to CRAN. This package is implemented in order to perform a multivariate exploration of a data table according to Lebart et al. (1995). We use some ade4 functions (Chessel et al. 2004) to perform the factorial analysis of the data and some stats functions in R to perform cluster methods. Some new functions are programmed to make specific tasks and another old ones are modified. Campo-El?as PARDO Departamento de Estad?stica Universidad Nacional de Colombia - Bogot?...

...s expensive and describes different algorithms to those used in R. Brian Ripley drew attention to Chapters 11 and 12 of MASS. Pierre Bady pointed out the material on the website "Enseignements de Statistique en Biologie" http://pbil.univ-lyon1.fr/R/enseignement.html by A.B. Dufour, D. Chessel & J.R. Lobry. I hope to explore this some more when I get back to higher bandwidth. Pat Altham has a wealth of material on her web site, especially http://www.statslab.cam.ac.uk/~pat/misc.ps and http://www.statslab.cam.ac.uk/~pat/AppMultNotes.ps.gz Many thanks to these respondants for their...

new R package FactoClass to combine factorial methods and cluster analysis is uploaded to CRAN. This package is implemented in order to perform a multivariate exploration of a data table according to Lebart et al. (1995). We use some ade4 functions (Chessel et al. 2004) to perform the factorial analysis of the data and some stats functions in R to perform cluster methods. Some new functions are programmed to make specific tasks and another old ones are modified. Campo-El?as PARDO Departamento de Estad?stica Universidad Nacional de Colombia - Bogot?...

Hello R Users, I was at a meeting earlier today, where the figure below was presented. Does anyone know what this type of plot is called? Is there an R package designed to generate these? Regards, James http://www.nabble.com/file/p22922671/Plot.gif Plot.gif -- View this message in context: http://www.nabble.com/Interesting-Plot-tp22922671p22922671.html Sent from the R help mailing list

Hi all, I' m trying to figure out if it is appropriate to do a PCA having only categorical data (not ordinal). I have only find the following quote: One method to find such relationships is to select appropriate variables and to view the data using a method like Principle Components Analysis (PCA) [4]. This approach gives us a clear picture of the data using KL-plot of the PCA. However, the

Hi, from what I understand about the canonical correlation function 'cancor', it looks for correlations in two sets of variables, each represented in matrix form. Right? Sounds exactly like what I need. I have tried the following but I am not sure how to interpret the results. AudioPCs <- c(ArTHarF0PCA$x[,2], ArTHarF1PCA$x[,2], ArTHarF2PCA$x[,2], ArTHarF3PCA$x[,2],

Hi Now a more theoretical question. I have two correlation matrices - one of a set of variables under a particular condition, the other of the same set of variables under a different condition. Is there a statistical test I can use to see if these correlation matrices are "different"? Thanks Mick

Um texto embutido e sem conjunto de caracteres especificado associado... Nome: n?o dispon?vel Url: https://stat.ethz.ch/pipermail/r-help/attachments/20070401/33921c2a/attachment.pl

Dears, I've been learning biplot (Gabriel, 1971) and I found the function 'biplot', inside of the package 'stats', useful but, a bit limited. So, I'm thinking to start a colaborative package to enhance this methods to other multivariate methods. In this way, I would like to start it, making public a new function (biplot.pca, still in development, but running) that make