similar to: Is there a package for wavelets?

Displaying 20 results from an estimated 400 matches similar to: "Is there a package for wavelets?"

2000 Jun 26
1
postscript error
I'm using R version 1.1.0 with Redhat 6.2 in a Dual-Pentium When I type postscript() I have the next error: -- Error in old$command == "default" : comparison (1) is possible only for vector types I have updated R next week using the rpm package http://www.stat.math.ethz.ch/CRAN/bin/linux/redhat/6.x/i386/R-base-1.0 .0-2.i386.rpm I know that postscript() has new features, but I
1999 Nov 30
1
Character2function
If I have several character vectors, for example: a_c('data.') b_c('_myfunction(') c_c('vect.') d_c(')') and, j_1 I can build a vector using paste: x_paste(a,j,b,c,j,d,sep="") x="data.1_myfunction(vect.1)" I have n numeric vectors (vect.1...vect.n) Then, if I could evaluate the string x, I would calculate the result of my function in
2001 Mar 07
5
Remove
Hello, I would like to remove some files which have the extension .test for example (data1.test, data2.test ....). Is there another solution to remove them instead of doing it one by one ? Thanks for your help, St?phanie Langevin -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send
2002 Jun 12
3
package lattice
Hi! I am using R1.5.0. When using functions form lattice the background is dark grey. I have tried to change it using par() but it does not work. By the way, if I use par and the standard functions like hist() there is no problem with the par function. Any hints? Thank in advance, Ignacio Perez Escuela Colombiana de Ingenieria
2001 Feb 10
3
Scatterplot - symbols coded by factor
Hi - I would like to create a scatterplot with the symbols coded by a factor in each record. Is their a better way than what I have used below? I attempted to use the plot.factor, but cannot force it to make a scatterplot instead of boxplots. I have considerd making a function with a 'for' statement for each level of the factor. Is there a better way for when I am dealing with more
2000 Aug 04
3
How to use complicated FUN in apply ?
Hi everyone I'm trying to use sigma2.mat<-apply(ri.mat,2,'-n/2*log(sum(ri.mat^2)/n)') but it's not working. Is it wrong to use that kind of FUN in apply ? or am I doing something wrong ?! Thank's ernesto -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send
2003 Oct 09
1
real billing time for a call
Is there any way that you could trigger events based upon actual pickup of calls and hangups of lines in ALL cases(parked calls, queued calls, calls triggerd by .call queue files)? It seems like Asterisk needs something a little lower level to allow for this, is it even possible? MATT--- -----Original Message----- From: asterisk@analitica.md [mailto:asterisk@analitica.md] Sent: Thursday,
2011 Jul 04
1
wavelets
I'm new to the topic of wavelets. When I tried to use the mra function in the wavelets package, the data is not getting compressed. eg. if the original data has 500 values , the output data also has the same. However in MATLAB, depending on the level of decompositon, the data gets compressed. How do I implement this in R? -- View this message in context:
2010 Sep 03
2
Package wavelets
Hi user's Does anybody work with wavelets on R? Please I need some help.....!!!! Atte Marize Sim?es -- View this message in context: http://r.789695.n4.nabble.com/Package-wavelets-tp2526023p2526023.html Sent from the R help mailing list archive at Nabble.com.
2010 Sep 28
1
Best package for time series analysis with wavelets???
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,
2000 Dec 08
2
R and wavelets
Does anyone know of any use of wavelets (particularly for density estimation) in R? Are there any wavelet packages? -Alex Morgan -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- 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", not the subject
2009 Oct 23
2
Wavelets
Hi all, I am trying to do wavelets and I got an error message saying "The length of data is not a power of 2" Is there a way of handing that? or should the data length be exactly the power of 2? I am using R version 2.9.2 (2009-08-24) The is library(wavethresh). wds <- wd(ds$v,filter.number=1) Thanks
2001 Sep 01
0
local dicriminant basis with wavelets
hi, does anyone already have implemented in R the Best-Basis Algorithm or the Local Discriminant Basis Algorithm using wavelets? for those interested: both algorithms are described in N. Saito, R. R. Coifman: "Local Discriminant Bases" (SPIE vol. 2303, 1994) and can be downloaded here: ftp://pascal.math.yale.edu/pub/wavelets/papers/ldb.ps.gz thanks, till -- ALL THESE WORLDS
2002 Oct 27
1
denoising univariate data with wavelets
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
2004 Oct 22
0
wavelets
Hi I wanna know how can I just obtain the values of mother wavelets (symmlets) for the corresponding support. That isn´t the decomposition, just the values we can plot in R. thanks a lot Lane [[alternative HTML version deleted]]
2003 Feb 25
1
Wavelets correlation test
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
2009 Feb 20
0
package "wavelets" does nor recognize filter "d2"
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,
2009 Jul 28
0
spherical wavelets package
Hello to all, I am trying to use the spherical wavelets package on my altimetry data. I am having some problems now and then. Currently I am having an error of "error in matrix(0,KK,JJ) : too many elements specified" there is a thread of possibly same error (https://stat.ethz.ch/pipermail/r-help/2005-January/064308.html) but it seems like it doesnt really help me. More
2009 Feb 21
0
problems in package "wavelets" function "wt.filter"
> wt.filter("d8") 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" How come ? The above function works fine with the other Daubechies filters. Thank you. Best regards, Maura tutti i
2010 Feb 16
0
Outliers detection using wavelets
Hi R users   Thanks in advance   I have time series data sets. Is there any package in R that helps detect the outliers  using wavelet methods.   Thanks   email: ( assaedi76@yahoo.com ) [[alternative HTML version deleted]]