wavelet.2d(wavelet="s8", mother=T, level=0, shift=0, dual=F) wavelet.packet.2d(wavelet="s8", level=0, oscillation=0, shift=0, dual=F)
wavelet
is one, the same wavelet is used for both
row and column. See
wavelet
for a list of all available wavelet names.
scale=2^level
.
wavelet.packet.2d
only. A natural number corresponding to the
number of zero crossings. For the
haar
wavelet, this correspondence
is exact. A value of
0
indicates the father wavelet (scaling function);
a value of
1
indicates the mother wavelet. The default is
0
.
location=shift*2^level
.
wavelet.2d()
creates an object of class
wavelet.2d
,
inheriting from
wavelet.packet.2d
;
wavelet.packet.2d()
creates an object of class
wavelet.packet.2d
.
See
wavelet.packet.2d.object
for details.
Generic functions
plot, print
have methods to work with
wavelet.packet.2d
objects.
Daubechies, I. (1992). Ten Lectures on Wavelets. SIAM, Philadelphia.
par(mfrow=c(1,2)) plot(wavelet.2d("d4", mother=c(T, F))) plot(wavelet.2d(wavelet="bs1.3", dual=c(T, F)))