getg_snn.m

来自「神经网络的工具箱, 神经网络的工具箱,」· M 代码 · 共 28 行

function g = getg_snn(net, data)
%GETG_SNN get weights matrix g from net, data.
%
% See also
%
%   WCF_SNN
%

N = size(net.biases{net.numLayers},1);
MU = size(data.T,2);

if (nofieldorempty_snn(net.costFcn, 'a') & nofieldorempty_snn(data, 'gmu'))
   g = ones(N, MU);
elseif nofieldorempty_snn(net.costFcn, 'a')
   g = repmat(data.gmu, N, 1);
elseif nofieldorempty_snn(data, 'gmu')
   g = repmat(net.costFcn.a, 1, MU);
else
   g = net.costFcn.a * data.gmu;
end
if isfield(data, 'useT')
   ii = find(~data.useT);
   g(ii) = NaN;
end