similar to: using wavelet transform to calculate mean frequency of a signal

Dear, I am using "cwt "function from Rwave package to perform Morlet wavelet analysis. d1<-c(1.31673209591515, -0.171333455797346, -1.67618546079420, -0.931604651010362, -0.954614183224057, -1.19821794547758, 0.516096363353144, -0.0432811977638559, 0.737764943619919, 0.438046629673177, -0.208607167908743, -0.3091308821262, -1.42473112931594, 0.234125312118165, -0.307047554490597,

I am looking for some explanations about the usage of the poorely documented R paclkage Rwave. Has anyone ever tried out its functions for Wavelet Analysis ? Thank you so much. Maura Alice Messenger ;-) chatti anche con gli amici di Windows Live Messenger e tutti i telefonini TIM! Vai su http://maileservizi.alice.it/alice_messenger/index.html?pmk=footer [[alternative HTML version deleted]]

Hi R users   Thanks in advance   Is lifting wavelet transform implemented in R? If so, which package or codes  can be used for performing that?    assaedi76@yahoo.com   Thanks     [[alternative HTML version deleted]]

Hello, I am not expert in wavelet. i am working with a discrete dataset in 3D. I applied the D4 wavelet transform to each dimension sequentially. I made some analysis in the transformed space and i detected some interesting vowel. My question is. How is it possible to map a 3d coordinate in the transformed space to the related coordinate in the 3d original dataset? (i think that probably one

Hi! I have written an R-package (http://tocsy.agnld.uni-potsdam.de/wavelets/index.html) in R 2.4.1 that requires the ts() function. Users using R 2.5.0 now have a problem installing this package. I checked the package using R 2.5.0: _______________________________________________________ * Installing *source* package 'sowas' ... ** libs gcc -std=gnu99

Hello, I am thinking about plugging in Discrete Wavelet Transform as described in Vorbis I spec: 1.1.2. Classification Vorbis I is a forward-adaptive monolithic transform CODEC based on the Modified Discrete Cosine Transform. The codec is structured to allow addition of a hybrid wavelet filterbank in Vorbis II to offer better transient response and reproduction using a transform better suited to

Dear list, I am trying to choose the scale parameter for the cgt transform but I don't know how to do it. In time I would like to be able to separate points 30 samples apart, and in frequency I would like to separate bands 0.04 Hz apart. I tried the two approaches described below and they gave me different results. I would appreciate advise on how to do this. The Rwave Gabor transform uses

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.

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

Hi, I have little experience using wavelet and I would like to know if it is possible,using R wavelet package, to have a plot of frequency versus time. thank you giov -- View this message in context: http://www.nabble.com/help-on-wavelet-tp19395583p19395583.html Sent from the R help mailing list archive at Nabble.com.

Hello I am currently working on forecasting hourly electricity prices where I am required to do wavelet transformation. First I need to calculate decomposition coefficients of the wavelet transform, then I need to select wavelet function using multiresolution technique. I would be really grateful if I can find any help in this matter. Thanking You with regards, -- Name : Tarun Trivedi Senior

&nbsp; 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(&nbsp;METEOROLOGIST) LRF SECTION&nbsp; NATIONAL CLIMATE&nbsp;CENTER ADGM(RESEARCH) INDIA METEOROLOGICAL&nbsp;DEPARTMENT

Hello I am currently working on forecasting hourly electricity prices where I am required to do wavelet transformation. First I need to calculate decomposition coefficients of the wavelet transform, then I need to select wavelet function using multiresolution technique. I would be really grateful if I can find any help in this matter. Thanking You with regards, -- Name : Tarun Trivedi Senior

aa <- (structure(list(X.0.85 = c(-1.02, -1.17, -1.29, -1.39, -1.46, -1.5, -1.52, -1.5, -1.46, -1.39, -1.3, -1.19, -1.07, -0.93, -0.79, -0.65, -0.5, -0.36, -0.22, -0.08, 0.05, 0.18, 0.3, 0.41, 0.52, 0.62, 0.72, 0.81, 0.89, 0.98, 1.05, 1.13, 1.19, 1.25, 1.29, 1.31, 1.31, 1.29, 1.24, 1.16, 1.06, 0.93, 0.77, 0.58, 0.38, 0.16, -0.07, -0.31, -0.89, -1.05, -1.19, -1.31, -1.41, -1.47, -1.51, -1.51,

Dear list, I would like to fit a wavelet SVM model. Where can I find a wavelet kernel function? Thanks in advance. Stella Sim DISCLAIMER:\ This email contains confidential informatio...{{dropped:11}}

Hello everybody. My name is Angela. I'm doing wavelet using the sowas library. The problem I have is that I don't know how to choose the paremeters to describes differnt wavelet analysis. How I select the noctave, nvoice, w0, s0,...? I hope my question is clear enough. Thank you very much beforehand. Angela -- View this message in context:

Hello, Is is a great pleasure to post on a Xiph IRC Channel.I contacted you to have your advice and comment about wavelets for image/video compression, as I have made a wavelet-based image compression codec. I know that currently the best image/video compression codecs use the DCT block-based transform, like JPEG, Ogg Theora and the recent Google WebP, for example, but what would you think of

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

Following a post on vqf.com forum, I found out that some company called Adapted Wave Technology is ready to release its audio codec based on wavelets. They say that this wavelet-based codec is superior to MDCT codecs by 30-50%. One sentence caught my attention: "Adapted Wave Technologies holds exclusive patent rights for applying wavelet packets to audio applications." - sounds like a

I've been reading up on wavelet transforms the past week, and I plan to start on some video compression stuff next week, if it's any good (small chance :)) for Tarkin. So far I think I know what's happening, however there's one small thing I don't quite understand yet. If I understand correctly, you can do a 2d wavelet transform (I'm assuming a Haar transform here for