mrdwt | R Documentation |
Computes the redundant discrete wavelet transform y
for
input signal x
using the scaling filter h
. Redundant
means here that the sub-sampling after each stage is omitted.
mrdwt(x, h, L)
x |
Finite 1D or 2D signal (implicitly periodized) |
h |
Scaling filter to be applied |
L |
Number of levels in wavelet decomposition. In the case of a 1D signal, length(x) must be divisible by 2^L; in the case of a 2D signal, the row and the column dimension must be divisible by 2^L. If no argument is specified, a full DWT is returned for maximal possible L. |
Returns a list with components:
yl |
Lowpass component |
yh |
Highpass components |
L |
Number of levels in wavelet decomposition |
P. Roebuck proebuck1701@gmail.com
sig <- makesig(SIGNAL.LEOPOLD, 8) h <- daubcqf(4) L <- 1 ret.mrdwt <- mrdwt(sig$x, h$h.0, L)
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