diff scripts/statistics/models/logistic_regression_derivatives.m @ 3426:f8dde1807dee

[project @ 2000-01-13 08:40:00 by jwe]
author jwe
date Thu, 13 Jan 2000 08:40:53 +0000
parents 041ea33fbbf4
children d8b731d3f7a3
line wrap: on
line diff
--- a/scripts/statistics/models/logistic_regression_derivatives.m	Thu Jan 13 08:32:16 2000 +0000
+++ b/scripts/statistics/models/logistic_regression_derivatives.m	Thu Jan 13 08:40:53 2000 +0000
@@ -1,29 +1,29 @@
 ## Copyright (C) 1995, 1996, 1997  Kurt Hornik
-## 
+##
 ## 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. 
-## 
+## General Public License for more details.
+##
 ## You should have received a copy of the GNU General Public License
 ## along with this file.  If not, write to the Free Software Foundation,
 ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 ## Called by logistic_regression.  Calculates derivates of the
 ## log-likelihood for ordinal logistic regression model.
-  
+
 ## Author:  Gordon K. Smyth <gks@maths.uq.oz.au>
 ## Adapted-By:  KH <Kurt.Hornik@ci.tuwien.ac.at>
 ## Description:  Derivates of log-likelihood in logistic regression
 
 function [dl, d2l] ...
       = logistic_regression_derivatives (x, z, z1, g, g1, p)
-  
+
   ## first derivative
   v = g .* (1 - g) ./ p; v1 = g1 .* (1 - g1) ./ p;
   dlogp = [(dmult (v, z) - dmult (v1, z1)), (dmult (v - v1, x))];
@@ -33,5 +33,5 @@
   w = v .* (1 - 2 * g); w1 = v1 .* (1 - 2 * g1);
   d2l = [z, x]' * dmult (w, [z, x]) - [z1, x]' * dmult (w1, [z1, x]) ...
       - dlogp' * dlogp;
-  
+
 endfunction
\ No newline at end of file