comparison toolboxes/FullBNT-1.0.7/netlab3.3/nethess.m @ 0:e9a9cd732c1e tip

first hg version after svn

+function [h, varargout] = nethess(w, net, x, t, varargin)
+%NETHESS Evaluate network Hessian
+%
+%	Description
+%
+%	H = NETHESS(W, NET, X, T) takes a weight vector W and a network data
+%	structure NET, together with the matrix X of input vectors and the
+%	matrix T of target vectors, and returns the value of the Hessian
+%	evaluated at W.
+%
+%	[E, VARARGOUT] = NETHESS(W, NET, X, T, VARARGIN) also returns any
+%	additional return values from the network Hessian function, and
+%	passes additional arguments to that function.
+%
+%	See also
+%	NETERR, NETGRAD, NETOPT
+%
+
+%	Copyright (c) Ian T Nabney (1996-2001)
+
+hess_str = [net.type, 'hess'];
+
+net = netunpak(net, w);
+
+[s{1:nargout}] = feval(hess_str, net, x, t, varargin{:});
+h = s{1};
+for i = 2:nargout
+  varargout{i-1} = s{i};
+end