invscale_snn.m

来自「神经网络的工具箱, 神经网络的工具箱,」· M 代码 · 共 44 行

function x = invscale_snn(y, sc)
%INVSCALE_SNN  inverse of scaling function.
%
% Syntax
%
%  x = invscale_snn(y, sc)
%
% Description
%
%  INVSCALE_SNN takes
%    y   -  [N x M] matrix of scaled values.
%    sc  -  [N x 1] cell of [1 x Ln] arrays of sc_structs
%        or [1 x L] array of sc_structs containing scaling
%        information.
%  and returns
%    x   -  [N x M] matrix with scaling reversed. 
%
%   (N, M, L = integer; Ln = integer with 0 < n < N)
%
% See also
%
%   SCALE_SNN
%



if iscell(sc)
   if (size(y, 1) ~= size(sc, 1))
      error('INVSCALE_SNN: dimension 1 of input arguments must be the same')
   else
      x = y;
      for k = 1:size(y, 1)
          for i = prod(size(sc{k})):-1:1
              x(k,:) = feval(sc{k}(i).name, x(k,:), sc{k}(i).parameters, 'inv');
          end
      end 
   end
else
   x = y;
   for i = prod(size(sc)):-1:1
       x = feval(sc(i).name, x, sc(i).parameters, 'inv');
   end
end