similar to: Symlet package in R Cran

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

Dear all, I would like to ask you if R can produce any kind of sound. It would be useful when code execution stops R to notify me by playing some sound. Is that possible in R? I would like to thank you in advance for your help Best Regards Alex

Dear all, Using R function "dwt", it seems that I cannot specify the wavelet transformation like Haar. What's the R code for wavelet decomposition which allows me to specify Haar wavelet transformation? Of course, if it can include "db2", that is even better. In general, I want an R function like matlab code "dwt". Thanks in advance! Zhen Li

I take the liberty of pasting the on-line documentation for package "wavelets", functions "dwt" and "wt.filter", pertinent to the wavelet/filter choice. While I apologize for my verbose messages with huge attachments, I encourage whoever loads packages to CRAN to take some minutes to reread the attached documentation. Usage dwt(X, filter="la8", n.levels,

Dear all, I am trying to install the rJava package. I am getting the following message "libjvm.so: cannot open shared object file: No such file or directory" at this web site I have found that (bottom part) http://rwiki.sciviews.org/doku.php?id=packages:cran:rjava that Unix: if you encounter a message similar to this one: Error in dyn.load(x, as.logical(local), as.logical(now)) :

Dear all, I am using browse() to debug my R applications. My problem is that I need a bit more control of the debugging process.   For example 'I want R to stop at the 7th iteration and check. One can do think that I can put the browse inside an if statement but this limits by lot the flexibility one can have.   Do you have any suggestions?   Regards Alex [[alternative HTML version deleted]]

> wt.filter("d8") #### HOW COME ???? Error in validObject(.Object) : invalid class "wt.filter" object: invalid object for slot "transform" in class "wt.filter": got class "function", should be or extend class "character" > wt.filter("d10") # OK An object of

Dear all I would like to ask from dir function in R (?dir) to give me only the files that end with .txt or .doc. The dir functions supports the use of patterns (is not that regular expressions) for doing that.   print(dir(i,full.names=TRUE,pattern=.....)) Could you please help me compose such a pattern? B.R Alex [[alternative HTML version deleted]]

Hello! I wouldl ike to ask you if R supports step by step execution. I have written some nested loops and I would like to check on every step what are the values of some variables. Printing all the variables just creates a really big output of numbers. Could you please give some debugging tutorial that included the aforementioned functionalities? |Moreover can you please tell me how I

Dear all, I would like to ask you if R has a library that can work with different GPS formats For example  I have a string of this format N50° 47.513 E006° 03.985 and I would like to convert to GPS decimal format. that means for example converting the part N50° 47.513 to 50 + 47/60 + 513/3600. Is it possible to do that with R? What is the name of such a library? I would like to thank you in

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

Dear all I want to convert a apply to lapply. The reason for that is that there is a function mclappy that uses exact the same format as the lapply function. My code looks like that mean_power_per_tip <- function(data) {         return((apply(data[,],2,MeanTip))); } where data is a [m,n] matrix. I would like to thank you in advance for your help B.R Alex [[alternative HTML version

Given a time series of length N, I am trying to figure out its maximum DWT decomposition level. With reference to "dwt" function of R package "wavelets", running the provided example I get the following and wonder how the maximum decomposition level (which is not an integer number) is calculated. I tried myself the formula in the on-line documentation but could not get the

Hello everyone. I would like to create many objects with R. Does R support objects? The number of objects needed is not predetermined and it is a parameter specified by the user. If the user selects to create many objects like 100, would it be possible to handle each one by some index? I would like to thank you in advance for your help. Best Regards Alex [[alternative HTML version

Dear all, I am having a vector of around 300.000 elements and I Want to slide fast a window from the first element until the last-Windowsize what I have so far is the following for statement:  for (i in 1:(length(data[,1]) - windowSize)) {         out[i] <- mean(data[i:(i + windowSize - 1), ])         elements[i]<-length(i:(i + windowSize - 1))       } but this of course takes ages to

Dear all, I would like to ask your help regarding handling time stamps in R. I think first I need a reference to read about their logic and how I should handle them. For example, this is a struct I have str(MyStruct$TimeStamps)  num [1:100, 1:6] 2011 2011 2011 2011 2011 ... MyStruct$TimeStamps[1,] [1] 2011.000   10.000    6.000   16.000   23.000   30.539 the last field contains

Begin forwarded message: > From: David Winsemius <dwinsemius at comcast.net> > Date: January 26, 2011 8:32:30 AM EST > To: Alaios <alaios at yahoo.com> > Subject: Re: [R] MAtrix addressing > > > On Jan 26, 2011, at 7:58 AM, Alaios wrote: > >> Unfortunately right now is convoluted... by I was trying to find >> some solution. >> Bring again

Hello everyone. I would like to find the sample covariance matrix using R. So far I read on the wikipedia what a sample_covariance is http://en.wikipedia.org/wiki/Sample_covariance according to wikipedia one vector is enough to calculate the sample covariance matrix. In R I tried cov(myvector) and I get the reply that I need to pass either two argument or one matrix with x,y values . How can I

Dear all, I have a few binary files like 9Gb or even of 50Gb. I would like to ask you what are the known limits of the R for the data processing part, I have a system with a lot of RAM (500Gb) but I am not sure about the "internal" limitations of the R. How long for example a vector can be? Could you please inform me for these internal R limitations? I would like to thank you in

I have written a short script to estimate the size of a test of non-constant mean in an AR(1) time series. When I run the simulation on my PC (R version 2.7.1), I get the expected result: an empirical size much larger than the nominal size. On the Red Hat machine (R version 2.7.2) in my department, however, I get p-values > .45 for every simulated test. Below is my simulation code (uses