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__dpurelin.m

## Copyright (C) 2005 Michel D. Schmid  <michaelschmid@users.sourceforge.net>
##
##
## This program is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## This program is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; see the file COPYING.  If not, see
## <http://www.gnu.org/licenses/>.

## -*- texinfo -*-
## @deftypefn {Function File} {} @var{a} = __dpurelin (@var{n})
## @code{dpurelin}, first derivative of purelin
## @example
##
## purelin is a linear transfer function used by neural networks
## @end example
##
## @end deftypefn

## Author: Michel D. Schmid

function a = __dpurelin(n)

   [nRows, nColumns] = size(n);
   a = ones(nRows,nColumns);

endfunction

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