--- a/scripts/signal/detrend.m
+++ b/scripts/signal/detrend.m
@@ -1,15 +1,15 @@
 ## Copyright (C) 1995, 1996  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.
@@ -18,10 +18,10 @@
 ## @deftypefn {Function File} {} detrend (@var{x}, @var{p})
 ## If @var{x} is a vector, @code{detrend (@var{x}, @var{p})} removes the
 ## best fit of a polynomial of order @var{p} from the data @var{x}.
-## 
+##
 ## If @var{x} is a matrix, @code{detrend (@var{x}, @var{p})} does the same
 ## for each column in @var{x}.
-## 
+##
 ## The second argument is optional.  If it is not specified, a value of 1
 ## is assumed.  This corresponds to removing a linear trend.
 ## @end deftypefn
@@ -29,9 +29,9 @@
 ## Author: KH <Kurt.Hornik@ci.tuwien.ac.at>
 ## Created: 11 October 1994
 ## Adapted-By: jwe
-  
+
 function y = detrend (x, p)
-  
+
   if (nargin == 1)
     p = 1;
   elseif (nargin == 2)
@@ -41,18 +41,18 @@
   else
     usage ("detrend (x [, p])");
   endif
-  
+
   [m, n] = size (x);
   if (m == 1)
     x = x';
   endif
-  
+
   r = rows (x);
   b = ((1 : r)' * ones (1, p + 1)) .^ (ones (r, 1) * (0 : p));
   y = x - b * (b \ x);
-  
+
   if (m == 1)
     y = y';
   endif
-  
+
 endfunction