a character string or a character vector of length two.
If the length of wavelet is one, the same wavelet is used for both
row and column. See wavelet for a list of all available wavelet names.
mother:
a logical flag or a logical vector of length two,
indicating that the mother or father wavelet is requested for
the row wavelet or column wavelet.
level:
an integer or an integer vector of length two,
serving as scaling parameters, scale=2^level.
oscillation:
an integer vector of length two.
For 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.
shift:
an integer or an integer vector of length two,
serving as location parameters, location=shift*2^level.
dual:
a logical flag or a logical vector of length two,
indicating if dual filters are requested.
VALUE:
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.
DETAILS:
Generic functions plot, print have methods to work with wavelet.packet.2d
objects.
REFERENCES:
Daubechies, I. (1992).
Ten Lectures on Wavelets.
SIAM, Philadelphia.