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   -> Volume 2, Issue 7


Wavelet software for S.
 
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G. P. Nason, School of Mathematical Sciences, University of Bath
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PostPosted: Fri Nov 29, 2002 3:29 pm    
Subject: Wavelet software for S.
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Wavelet software for S.

WAVELET TRANSFORMS AND THRESHOLDING IN 1 AND 2 DIMENSIONS FOR S

Version 2.1

WHAT: S software to compute the 1- and 2-dimensional wavelet transform
using Mallat's pyramidal algorithm with Daubechies compactly supported
orthonormal wavelets and incorporating an implementation of the
thresholding ideas of Donoho and Johnstone.

Package consists of:

* S functions that compute the 1- and 2-dimensional
discrete wavelet transform, and inverse. (Uses
dynamically loaded C code)
* S functions to perform thresholding
* S functions to plot and interpret sets of wavelet coefficients
* Full on-line S help

WHERE: Obtain via anonymous FTP from

gdr.bath.ac.uk

Userid "anonymous" and your email address as the password.
Software is in directory /pub/masgpn as the file "wavelet.shar.Z"
Unpacking instructions in "README.Z". The transfer should be
done using the BINARY transfer mode of ftp and then the files
should be uncompressed using the UNIX command "uncompress".

Extra draft documentation is in "dws.ps.Z" - a compressed PostScript
file.

ALSO available from the statlib archive (ftp: lib.stat.cmu.edu)
userid "statlib", your email address as password. The software
is in the "S" directory as "wavethresh".

CONTACT: gpn@maths.bath.ac.uk for further information
All times are GMT + 1 Hour
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