mean.m

《MATLAB 7.0编程基础》第4章 （源码实例）主要讲解MATLAB的符号运算

function y=mean(x)
%MEAN Average or mean value
%for vectors,MEAN(x) is themean value of X
%for matrices, MEAN(X)is a row vector
[m,n]=size(x);
if m==1
m=n
end
y=sum(x)/n