search for: coiflet

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 you for any help, Amir Safari --------------------------------- [[alternative HTML version deleted]]

Is there a wavelet toolbox in R available that can be compared to the Matlab toolbox for wavelets. Does this toolbox offer the possibility to calculated approximations with different wavelets such as Daubechies 2, Daubechies 3, etc, Symmlet 3, Symmlets 5, etc, Coiflets and so on. I have tried to proceed in this way but I was only able to use one sort of wavelets with a pre-fixed order (i.e. pre-fixed vanishing moments). Thank you for help! Vera Hofer

...r(filter="la8", modwt=FALSE) Arguments filter A character string indicating which wavelet transform filter to compute .... Details The character strings currently supported are derived from one of four classes of wavelet transform filters: Daubechies, Least Asymetric, Best Localized and Coiflet. The prefixes for filters of these classes are d, la, bl and c, respectively. Following the prefix, the filter name consists of an integer indicating length. Supported lengths are as follows: Daubechies 2,4,6,8,10,12,14,16,18,20. Least Asymetric 8,10,12,14,16,18,20. Now let's try to pick f...