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)))