similar to: Mac OS X and R

Hi!! I'm looking for a package in R for time series analysis using wavelets( I'm interested on extractingt information from electrocardiograms with the aim of study the heart rate variability) so i want to know which package is the best for me. I've thinking about using some of those(you can recommend me others,xD): *wavelets: A package of funtions for computing wavelet filters,

I realized that I may not have answered the question you were asking and that no one else has responded. I can across a similar problem and may have an answer to your question now. If you have both the wavelet coefficients and the scaling coefficients then create a fake sequence of the same length as the original and decompose that sequence using wd form wavethersh with the same wavelet family

Hi, I am interested in a applying wavelets as a smoothing tool for my (1-dimensional) data. I looked into wavetresh and waveslim packages but could not quite figure out an obvious way to do this after running dwt or wt functions. Would someone be able to point me in the right direction on how to denoise univariate data using one of wavelet packages available in R? Thank you very much Jane ps

Hi There, I tried to find a function in {waveslim} or {wavethresh} in order to recunstruct the decomposed signals. As far as I found there is no function in {waveslim} to recunstruct decomposed data. The function wr{wavethresh} recunstructs the results of wd function. Apart from its limitations ( for example the length of vector must be power of 2 ) it apparently doesn't work with the

Full_Name: Peter Wickham Version: 2.4.1 OS: Mac 10.4.10 Submission from: (NULL) (209.59.87.136) Attempted to load "gdata" and "gregmisc" packages after using installing via Package Installer in R. Both load attempts resulted in the following message: "Error in loadNamespace(i[[1]], c(lib.loc, .libPaths())) : there is no package called 'gtools'". There is no

Hello, I use wavethresh packages to perform wavelet analysis. In particular, I would like to compare 2 signals (vectors) after a wavelet decomposition. I would like to use cor.test function, but this function acts on the entire vector values. I plan to perform a cor.test on each level of the wavelet decomposition, say N. So I will have at the end of a first step N results of cor.test. How can

I upgraded from Fedora Core 4 to Fedora Core 5 and I find a lot of previously installed packages won't run because shared libraries or other system things have changed "out from under" the installed R libraries. I do not know for sure if the R version now from Fedora-Extras (2.2.1) is exactly the same one I was using in FC4. I see problems in many packages. Example, Hmisc: unable

Hi all, I am dealing with paleoceanographic data and I have a C14 time serie and one other variable. I would like to perform a spectral analysis (fft or wavelet) and plot it. Unfortunately I don't know the exact script to do this. Does anybody could send me an example to perform my spectral analysis ? I Thank you David Changez de tête et de tenue tous les jours si vous le voulez !

Dear All, I have been working on building a new version of the Wavethresh package for some time now. Having build a working version on Linux, I am getting the following error when checking on Windows: C:\Rpackages\R\rw2000\bin>Rcmd check wavethresh * checking for working latex ... OK * using log directory 'C:/Rpackages/R/rw2000/bin/wavethresh.Rcheck' * checking for file

Dear R Users, For running wavelet functions using dwt( ), modwt( ), and mra( ), a wavelet filter algorithm is applied. For all these functions, default is "la8" and other possibility is "haar". In related documents, another possibilities like as symlet and coiflet ... are not cited. Besides "la8" and "haar", which wavelet filters can be used? Thank

Hello, Is there package built for R that can do model/prediction on time series data using wavelet? If not, does anyone know what popular software can do that? Thanks much, yan

Airon, I used R2.4.0 on a Windows XP (SP2) (not Chinese :-)) and it still works: > data = read.csv("u:/airon.csv") > xdata = data$Adj..Close > modwt.la8 = modwt(xdata, "la8", n.level=6) > summary(modwt.la8) Length Class Mode d1 1467 -none- numeric d2 1467 -none- numeric d3 1467 -none- numeric d4 1467 -none- numeric d5 1467 -none- numeric d6 1467

Hello, I have upgraded from Mandrake Linux 8.0 to Mandrake 8.1 and try to reinstall my favourite R... Everything is OK for the base software but I have trouble to get some packages installed. Specifically, for some packages, a "collect2" binary seems to be necessary during the compilation/linking process of the library, and LD complains about not finding it : Installing source

hi everyone . I am trying to use some packages but there are some functions have the same name in different package. for example dwt function both in packages wavelets and waveslim dwt(X, filter="la8", n.levels, boundary="periodic") How can I avoid mixing them up ? -- TANG Jie Email: totangjie@gmail.com Tel: 0086-2154896104 Shanghai Typhoon Institute,China

--Apple-Mail-1--963012407 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed Hi, I get exactly the same error message as in report no 6920. Furthermore, starting "update Bioconducter" the following message appears (running Mac OS X 10.3.4 (7H63)) : > {library(reposTools);update.packages2(getAllDeps=TRUE)} Synching your local package

This code consistenly segfaults for me. Can someone please take a look and tell me if the problem is due to something I am doing or is there a problems with the dwt (idwt) functions in the waveslim library. Thanks tom library(waveslim)

Dear list members, I have problem to load data of the library waveslim. After I load the library waveslim and tried to load data ibm data(ibm) Error in file(file, "r") : unable to open connection In addition: Warning message: cannot open file `ibm.txt'' I also tried other data sets without success. It works for other libraries though. Any suggestions? Thanks. Zhu Wang

Can someone please help me understand the examples given in the dwt function of the waveslim library library(waveslim) ?dwt I'm having a problem understanding these lines. I assume they are required because of how the algorythm deals with the signal bounderies. Am I correct in thinking that for wavelets of scale 1 and 2, the coefiecints need to be shifted by 2 places, for scale 3 and 4 shift

Does R have any wavelet functions? When I type > help.search("wavelet") I get " No help files found with alias or concept or title matching 'wavelet' using fuzzy matching." Thanks, Peter.

  Hi, List ,I am searching any package on R which can do wavelet filtering for mother wavelet morlet ,is anybody having any script for the same ? I am new to the RwAVELET ANALSSIS.. THANKS IN ADVANCE ANIL KUMAR ANIL KUMAR( METEOROLOGIST) LRF SECTION  NATIONAL CLIMATE CENTER ADGM(RESEARCH) INDIA METEOROLOGICAL DEPARTMENT