?? fracpartition.m
字號:
function z = FracPartition(cw,mm)
% FracPartition -- Fractal Partition Function based on wavelet modulus maxima
% Usage
% z = FracPartition(cw,mm,q)
% Inputs
% cw matrix output by CWT
% mm maxmap output by MMWT
% Outputs
% z matrix nexp by nscale of z(q,a)
%
% Description
% z(q,a) = sum_i( |CWT(a,b(i))|^q ), where b = (b(i)) is a list
% of wavelet transform maxima
%
% See Also
% RWT, MM_RWT
%
if nargin < 3,
q = linspace(-2,5,61);
end
[n,nscale] = size(cw);
for k=1:nscale,
j = find(mm(:,k));
if ~isempty(j),
C = abs(cw(j,k));
for i=1:length(q),
z(i,k) = sum(C .^ q(i));
end
else
end
end
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