%將5000->4096點，驗證得出此函數正確,n是原來長度，k是調整后長度function [numshort] = Average( n, k, numlong )rate=n/k;for m=1:k	count(m)=0;	sum(m)=0;	for l=1:n		if (floor((l-1)/rate))==(m-1) 			count(m)=count(m)+1;			sum(m)=sum(m)+numlong(l);         end;    end;	numshort(m)=sum(m)/(count(m));end;