R packages - Nov 2004 - updated package waveslim 1.4

waveslim 1.4 has recently been uploaded to CRAN and is fully compatible 
with Rv2.0.  Besides ensuring usability with the most recent version of R, 
two additional "flavors" of wavelet methodology have been added to the
package: (1) Hilbert wavelet pairs and (2) the dual-tree complex wavelet 
transform [only 1D and 2D ported from Matlab code by Selesnick].  The 
dual-tree CWT code has not been optimized for R (only a "direct" port
from
Matlab) so reasonable speed-ups are anticipated in the future. 
Comments/bug reports are welcome.

References for (1) include: 

Selesnick, I.W. (2001). Hilbert transform pairs of wavelet bases. IEEE 
Signal Processing Letters 8 (6), 170â"173.
Selesnick, I.W. (2002). The design of approximate Hilbert transform pairs 
of wavelet bases. IEEE Transactions on Signal Processing 50 (5), 
1144â"1152.
Whitcher, B. and P.F. Craigmile (2004). Multivariate Spectral Analysis 
Using Hilbert Wavelet Pairs, International Journal of Wavelets, 
Multiresolution and Information Processing, 2 (4), in press.

References for (2) include: 

Kingsbury, N. (1999). Image processing with complex wavelets. Proceedings 
of the Royal Society of London, Series A, 357, 2543â"2560.
Kingsbury, N. (2001). Complex wavelets for shift invariant analysis and 
filtering of signals. Applied and Computational Harmonic Analysis, 10 (3), 
234â"253.

cheers...

Brandon


Brandon Whitcher, PhD
Translational Medicine & Technology
GlaxoSmithKline
Greenford Road
Greenford UB6 0HE, United Kingdom

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