06 Nov 2002
02 Dec 2002)
Pattern analysis toolbox.
function w = netpak(net)
%NETPAK Combines weights and biases into one weights vector.
% W = NETPAK(NET) takes a network data structure NET and combines the
% component weight matrices into a single row vector W. The facility
% to switch between these two representations for the network
% parameters is useful, for example, in training a network by error
% function minimization, since a single vector of parameters can be
% handled by general-purpose optimization routines. This function also
% takes into account a MASK defined as a field in NET by removing any
% weights that correspond to entries of 0 in the mask.
% See also
% NET, NETUNPAK, NETFWD, NETERR, NETGRAD
% Copyright (c) Ian T Nabney (1996-2001)
pakstr = [net.type, 'pak'];
w = feval(pakstr, net);
% Return masked subset of weights
if (isfield(net, 'mask'))
w = w(logical(net.mask));