diff m-toolbox/classes/@cdata/rdivide.m @ 0:f0afece42f48

Import.
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@cdata/rdivide.m	Wed Nov 23 19:22:13 2011 +0100
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+% RDIVIDE implements element division for cdata objects.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: RDIVIDE implements element division for two cdata objects.
+%
+% CALL:
+%              a = d1./d2
+%              a = rdivide(d1,d2);
+%
+%
+% <a href="matlab:utils.helper.displayMethodInfo('cdata', 'rdivide')">Parameters Description</a>
+%
+% VERSION:     $Id: rdivide.m,v 1.2 2011/04/08 08:56:34 hewitson Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = rdivide(varargin)
+  
+  % get two data objects
+  d1 = copy(varargin{1}, nargout);
+  d2 = copy(varargin{2}, nargout);
+  
+  % check units
+  d1.yunits.simplify();
+  d2.yunits.simplify();  
+  
+  % add the data
+  dout = applyoperator(d1,d2,'rdivide');
+  
+  % handle units: multiply the units
+  dout.yunits = d1.yunits./d2.yunits;
+  
+  % handle errors
+  err = @(err1, err2, val1, val2) sqrt( (err1./val1).^2 + (err2./val2).^2 ) .* abs(val1./val2);
+  if ~isempty(d1.dy) || ~isempty(d2.dy)    
+    if isempty(d1.dy)
+      d1.dy = zeros(size(d2.dy));
+    end
+    if isempty(d2.dy)
+      d2.dy = zeros(size(d1.dy));
+    end    
+    dout.dy = err(d1.dy, d2.dy, d1.y, d2.y);
+  else
+    dout.dy = [];
+  end
+
+  % Single output
+  varargout{1} = dout;
+  
+end
+