rowsum.m

人工神经网络的源码编程

function s = rowSum(X)
%  s = rowSum(X)
%
%  Outputs a column vector whose elements are the
%  sums of the rows of X.
%
%  Inputs
%
%    X     matrix (m-by-n)
%
%  Output
%
%    s     vector (m-by-1)

[m,n] = size(X);

if n > 1
	s = sum(X')';
else
	s = X;
end