应用的比较方便

				function perf=mse(e)				%				% calculate the mean squared error of the given errors				% 				%  'perf = mse(E);'				%				% see also:				%    mae, linf, trimmedmse				%								% Copyright (c) 2002,  KULeuven-ESAT-SCD, License & help @ http://www.esat.kuleuven.ac.be/sista/lssvmlab												perf = sum(sum(e.^2)) / prod(size(e));