evenodd.m

the file contain many matlab signal source code and many example .

function [xe,xo,m]=evenodd(x,n)
% Real signal decomposition into even and odd parts
%-------------
% [xe,xo,m]=evenodd(x,n)
% 
if any (imag(x)~=0)
    error('x is not a real sequence')
end 
m=-fliplr(n);
m1=min([m,n]);m2=max([m,n]);m=m1:m2;
nm=n(1)-m(1);n1=1:length(n);
x1=zeros(1,length(m));
x1(n1+nm)=x;x=x1;
xe=0.5*(x+fliplr(x));
xo=0.5*(x-fliplr(x));