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Hi all, Does anyone know how to get the independent components and loadings from an Independent Component Analysis (ICA), as well as principal components and loadings from a Pricipal Component analysis (PCA) using the fastICA package? Or perhaps if there's another way to do ICAs in R? Below is an example from the fastICA manual (http://cran.r-project.org/web/packages/fastICA/fastICA.pdf) if(require(MASS)) { x <- mvrnorm(n = 1000, mu = c(0, 0), Sigma = matrix(c(10, 3, 3, 1), 2, 2)) x1 <- mvrnorm...

Hi, I'm trying to use fastICA package but I only get an error message like following. > library(fastICA) Error in dyn.load(file, DLLpath = DLLpath, ...) : unable to load shared library '/usr/lib/R/library/fastICA/libs/fastICA.so': /usr/lib/R/library/fastICA/libs/fastICA.so: undefined symbol: sgesdd_ Error: pa...

Hi everyone It looks like repeated runs of fastICA produce quite significantly different mixing matrices (not only in terms of sign and row order). I'm not a specialist, so would appreciate any advice on whether this should really be the case: > res3 = > fastICA(af[,2:20],4,alg.typ="parallel",fun="logcosh",alpha=1,met...

I have been playing around with the FastICA algorithm in R, and I have come across the following issue. I'm new to this topic, so I'm hoping someone will be able to shed some insight. We know that the variance of the Independent Components is constrained to be 1 and they are uncorrelated, so the sum of squares of the coefficients of...

A colleague suggested that some R software was available for estimating "Independent Components Analysis" (ICA) (... signal separation). If so, I''d appreciate any pointers . Chris Barker Director of Statistical Research MEDTAP International, Inc. Redwood City, Ca www.medtap.com <http://www.medtap.com/> 650 632 4218

...lt(V, W) : 'b' must be compatible with 'a' I have examined the code of function ProDenICA(), but could not find the reason. And how large is the sample size N generally required for a stable and robust result? I tried a sample of N=30 and get a very fluctuated mixing matrix A with fastICA algorithm in package fastICA, and the results become quite stable for a similar sample with N=60. Thanks for your patient reply! -- Randel School of Statistics, Renmin University of China.

Hi, Looking at the fastICA library. I want to test separating out different sounds from a recorded wav file. But, I only have a SINGLE stream of data (one channel wav.) It appears as if the fastICA won't let me separate more sounds than I have columns in my data matrix. is this correct? If so, is there a work around...

Hello, I think to use FastICA package for microarray data clusterization, but one question stops me: can I know how much variance explain each component (or all components together) ? I will be very thankful for the help. Thanks, Pavel [[alternative HTML version deleted]]

Dear helpers Does R have a package that performs projection pursuit density estimation? Or anyone knows code in Matlab or C for example to do this? Thank you all Luis

...rix NISTnls Oarray PHYLOGR PTAk RArcInfo RMySQL RODBC RPgSQL RandomFields RmSQL Rstreams Rwave SASmixed SuppDists VR XML acepack adapt akima ash bindata blighty boot bootstrap bqtl car cclust cfa chron cluster cmprsk coda conf.design cramer date diamonds dse e1071 ellipse event.chart exactRankTests fastICA fdim fields foreign fracdiff gafit gee geoR gld gregmisc gss ineq leaps lgtdl lmtest locfit logspline lokern lpridge maptree maxstat mclust mda meanscore mgcv mlbench muhaz multiv mvnmle mvtnorm netCDF nlme nlrq norm odesolve oz panel pcurve permax pinktoe pixmap polymars polynom princurve pspline...

This is in a 64 bit CentOS 5.6 instance at Amazon AWS with R version 2.14.1 (2011-12-22). It happens on several packages: RMySQL, RODBC, FastICA. Many other packages install just fine. Here's an example error message: * installing *source* package 'RODBC' ... ** package 'RODBC' successfully unpacked and MD5 sums checked sh: ./configure: /bin/sh: bad interpreter: Permission denied ERROR: configuration failed for packag...

...trying to use independent component regression inside the caret package. I ran into the error message below. All entries in the formula are dataframe column names. Any help is appreciated. icrFit <- icr(AUV ~ SPTR + NDDUEAFE + RU20INTR + LBUSTRUU + LF98TRUU + SPTRMDCP,Test,n.comp = 6) Error in fastICA::fastICA(x[, method$ica, drop = FALSE], ...) : unused argument (weights = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...

Hi all, I'm new to PCA in R, so this might be a basical thing, but I cannot find anything on the net about it. I need to make a PCA plot with two response variables (df$resp1 and df$resp2) against eight metabolites (df$met1, df$met2, ...) and I don't have a clue how to do... and I've only used the simplest PCAs before, like this: pcaObj=prcomp(t(df[idx, c(40:47)]))

Dear list I have a vector of values that allegedly have a bivariate normal distribution. I want to create a plot that shows the values I have obtained, and the bivariate normal distribution curve for the data. Is there a way of doing this in R? Many thanks for your help, Sarah. --------------------------------- [[alternative HTML version deleted]]

Does anyone know of an ICA (independent components analysis) package for R? In particular I'm looking for an implementation of the FastICA algorithm. Thanks in advance, Cole Harris -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", no...

Dear Fred, If x1 and x2 are *not* normally distributed, you can use independent component analysis (ICA) which is based on the idea that x will be "more normal" than either x1 and x2 following the central limit theorem. See package(fastICA) by JL Marchini, C Heaton, and BD Ripley for details. HTH Thomas > -----Original Message----- > From: Feng Zhang [mailto:f0z6305 at labs.tamu.edu] > Sent: 15 August 2003 17:34 > To: R-Help > Subject: [R] Is it possible to separate two independent > components from > arando...

Hi everyone, I am interested in using the SSYEV Lapack subroutine in a R package. Unfortunately I am not familiar with the all Lapack library and I was wondering why the routine SSYEV is not part of the R-LAPACK interface module. Is there any plan to extend the R-Lapack module in the next R release? Should I try to directly call the SSYEV routine of the external Lapack library from my R

Hi, I have just learned how to use compile and link libraries using "make" and how to create R projects using R CMD build or INSTALL. My understanding of both is somewhat limited and hence the question. I have a main library written in c which depends on other external libraries. Main library is to be called from R using .Call. The goal is to create a single R project that will

Hi all, I've just downloaded and installed the latest R 32-bit version plus RExcel and R Commander. I'm having several problems in loading gogarch package: The command *library(gogarch, pos=4)* returns *ERROR: package/namespace load failed for 'gogarch'* The command *require(gogarch)* returns *Error : Function found when exporting methods from the namespace 'gogarch'

OK: despite Dirk's very kind help, I decided that trying to deal with R configuration and Debian configuration simultaneously was too difficult. I did manage to solve my problem by reconfiguring/making/ installing all of 2.3.1 from source: ./configure F77=/usr/bin/g77 make make install A few questions inspired by this experience: (1) it seems a bit odd that R sets F77=gfortran by