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Full_Name: Anne-Laure Boulesteix Version: 1.6.0 OS: Linux Submission from: (NULL) (141.84.161.156) Hi, I noticed the following problem with 1.6.0 (which was not present in 1.5.1): I work with very large datasets and encountered a problem with memory allocation, (probably a memory leak). I wrote a programm with a loop. In th...

Hello, I am trying to explore the use of random forests for classification and am certain about the interpretation of the importance measurements. When having the option "importance = T" in the randomForest call, the resulting 'importance' element matrix has four columns with the following headings: 0 - mean raw importance score of variable x for class 0 (where

Dear R users, an update of the package ppls - Penalized Partial Least Squares - is now available on CRAN. It implements the methods described in N. Kr?mer, A.-L. Boulesteix, G. Tutz "Penalized Partial Least Squares with Applications to B-Spline Transformations and Functional Data" Chem. Intell. Lab. Sys. 2008 http://dx.doi.org/10.1016/j.chemolab.2008.06.009 Features of the package include * the estimation of functional data with penalized PLS, * the esti...

...regularized regression methods: Lasso, adaptive Lasso, PLS, and Ridge Regression. In addition, parcor provides cross-validation based model selection for Lasso, adaptive Lasso and Ridge Regression. More details can be found in the accompanying article Nicole Kr?mer, Juliane Sch?fer, Anne-Laure Boulesteix. Regularized Estimation of Large Scale Gene Association Networks using Gaussian Graphical Models BMC Bioinformatics, 10:384, 2009. http://www.biomedcentral.com/1471-2105/10/384 Please send an email to nkraemer at cs.tu-berlin.de for any comments, suggestions, or bug reports. Best regards, Nic...

...regularized regression methods: Lasso, adaptive Lasso, PLS, and Ridge Regression. In addition, parcor provides cross-validation based model selection for Lasso, adaptive Lasso and Ridge Regression. More details can be found in the accompanying article Nicole Kr?mer, Juliane Sch?fer, Anne-Laure Boulesteix. Regularized Estimation of Large Scale Gene Association Networks using Gaussian Graphical Models BMC Bioinformatics, 10:384, 2009. http://www.biomedcentral.com/1471-2105/10/384 Please send an email to nkraemer at cs.tu-berlin.de for any comments, suggestions, or bug reports. Best regards, Nic...

Dear R users, an update of the package ppls - Penalized Partial Least Squares - is now available on CRAN. It implements the methods described in N. Kr?mer, A.-L. Boulesteix, G. Tutz "Penalized Partial Least Squares with Applications to B-Spline Transformations and Functional Data" Chem. Intell. Lab. Sys. 2008 http://dx.doi.org/10.1016/j.chemolab.2008.06.009 Features of the package include * the estimation of functional data with penalized PLS, * the esti...