www.gusucode.com > nnet 工具箱 matlab 源码程序 > nnet/nnperformance/+sae/backprop.m

    function dy = backprop(t,y,e,param)
%SAE.BACKPROP Backpropagate derivatives of performance

% Copyright 2012-2015 The MathWorks, Inc.

  dy = -sign(e);
end