--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ao/sum.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,87 @@
+% SUM computes the sum of the data in the AO.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: SUM computes the sum of the data in the AO.
+%
+% CALL:        ao_out = sum(ao_in);
+%              ao_out = sum(ao_in, pl);
+%
+% <a href="matlab:utils.helper.displayMethodInfo('ao', 'sum')">Parameters Description</a>
+%
+% VERSION:     $Id: sum.m,v 1.34 2011/04/19 18:48:11 ingo Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = sum(varargin)
+  
+  % Check if the method was called by another method
+  callerIsMethod = utils.helper.callerIsMethod;
+  
+  % Settings
+  operatorName = 'sum';
+  dxFcn = [];
+  
+  if callerIsMethod
+    in_names = {};
+  else
+    % Collect input variable names
+    in_names = cell(size(varargin));
+    for ii = 1:nargin,in_names{ii} = inputname(ii);end
+    
+    % Check if this is a call for the minfo object
+    if utils.helper.isinfocall(varargin{:})
+      varargout{1} = getInfo(varargin{3});
+      return
+    end
+    
+  end
+  
+  % Here we are forced to collect objects so that we can check that each ao
+  % is the correct type and shape for doing det.
+  [as, dummy, rest] = utils.helper.collect_objects(varargin, 'ao', in_names);
+  
+  % Check for the correct data objects: Throw an error for data2D objects.
+  as.checkDataType('data3D');
+  
+  copyObjects = nargout>0;
+  
+  % Apply method to all AOs
+  [out, pl] = ao.applymethod(copyObjects, callerIsMethod, in_names, operatorName, dxFcn, @getInfo, @getDefaultPlist, varargin{:});
+  
+  % set outputs
+  if isa(out, 'ao')
+    out = fixAxisData(out, pl);
+    % Clear errors
+    out.clearErrors(pl);
+  end
+  
+  % set outputs
+  varargout = utils.helper.setoutputs(nargout, out);
+  
+end
+
+%--------------------------------------------------------------------------
+% Get Info Object
+%--------------------------------------------------------------------------
+function ii = getInfo(varargin)
+  ii = minfo.getInfoAxis(mfilename, @getDefaultPlist, varargin);
+end
+
+%--------------------------------------------------------------------------
+% Get Default Plist
+%--------------------------------------------------------------------------
+
+function plout = getDefaultPlist(set)
+  persistent pl;
+  persistent lastset;
+  if ~exist('pl', 'var') || isempty(pl) || ~strcmp(lastset, set)
+    pl = buildplist(set);
+    lastset = set;
+  end
+  plout = pl;
+end
+
+function plout = buildplist(varargin)
+  plout = plist.getDefaultAxisPlist(varargin{:});
+end
+