?? netderiv.m
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function g = netderiv(w, net, x)%NETDERIV Evaluate derivatives of network outputs by weights generically.%% Description%% G = NETDERIV(W, NET, X) takes a weight vector W and a network data% structure NET, together with the matrix X of input vectors, and% returns the gradient of the outputs with respect to the weights% evaluated at W.%% See also% NETEVFWD, NETOPT%% Copyright (c) Ian T Nabney (1996-2001)fstr = [net.type, 'deriv'];net = netunpak(net, w);g = feval(fstr, net, x);
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