[R] Wavelets in R

Guido Masarotto guido at sirio.stat.unipd.it
Wed Nov 11 20:54:46 CET 1998

On Wed, Nov 11, 1998 at 01:00:34PM -0500, Norm Josephy wrote:
> Sir:
> I find your version of R excellent.  I am teaching a course 
> next semester on Graphical Exploratory Data Analysis, and am 
> looking forward to having my students use this software.  
> Thank you for making it available.
> ............................................................
> I am interested in having my students do 
> some wavelet exploring.  The only public domain R/S/Splus 
> package that I am aware of is an S/S-plus package, 
> wavethresh, by Nason and Silverman.  I tried to dyn.load 
> their object file, but was unsuccessful.  I am not a C 
> programmer, and I do not have C-language tools available for 
> Microsoft Windows (I do most of my academic work using 
> Linux, but the school only supports Windows, and all 
> students are required to have Microsoft Windows machines).  
> Might you know of someone who has successfully used a 
> wavelets package with your Windows binary of R?
> Again, thank you for making this package available.
> Norman Josephy
> Associate Professor, Dept. Of Mathematical Sciences
> Bentley College
> Waltham, MA 02154  U.S.A.

  At the best of my knowledge, wavetresh hasn't be ported to R.
  I don't know it so I don't know how much work is required
  to made wavetresh working with R.
  If you have time, and if the package is really under a license
  that let this, I would suggest to try to pack wavetresh 
  as a R package WORKING UNDER LINUX (or some other fashion of Unix).
  Look to the R-Faq and to some of the module available in CRAN
  for what is needed (for a `polite' S module this can be as
  easy as (1) re-structuring the directories in the way R expects them;
  (2) converting (automagically) the documentation; (3) make some
  moderate make-up to the Makefile).
  Then, I would like to help you with the MsWindows part.
  I forward this message to r-help hoping that someone
  can give you some more advice.
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