Daniel@0: function w = mlppak(net)
Daniel@0: %MLPPAK	Combines weights and biases into one weights vector.
Daniel@0: %
Daniel@0: %	Description
Daniel@0: %	W = MLPPAK(NET) takes a network data structure NET and combines the
Daniel@0: %	component weight matrices bias vectors into a single row vector W.
Daniel@0: %	The facility to switch between these two representations for the
Daniel@0: %	network parameters is useful, for example, in training a network by
Daniel@0: %	error function minimization, since a single vector of parameters can
Daniel@0: %	be handled by general-purpose optimization routines.
Daniel@0: %
Daniel@0: %	The ordering of the paramters in W is defined by
Daniel@0: %	  w = [net.w1(:)', net.b1, net.w2(:)', net.b2];
Daniel@0: %	 where W1 is the first-layer weight matrix, B1 is the first-layer
Daniel@0: %	bias vector, W2 is the second-layer weight matrix, and B2 is the
Daniel@0: %	second-layer bias vector.
Daniel@0: %
Daniel@0: %	See also
Daniel@0: %	MLP, MLPUNPAK, MLPFWD, MLPERR, MLPBKP, MLPGRAD
Daniel@0: %
Daniel@0: 
Daniel@0: %	Copyright (c) Ian T Nabney (1996-2001)
Daniel@0: 
Daniel@0: % Check arguments for consistency
Daniel@0: errstring = consist(net, 'mlp');
Daniel@0: if ~isempty(errstring);
Daniel@0:   error(errstring);
Daniel@0: end
Daniel@0: 
Daniel@0: w = [net.w1(:)', net.b1, net.w2(:)', net.b2];
Daniel@0: