--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ao/var.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,91 @@
+% VAR computes the variance of the data in the AO.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: VAR computes the variance of the data in the AO.
+%
+% CALL:        ao_out = var(ao_in);
+%              ao_out = var(ao_in, pl);
+%
+% <a href="matlab:utils.helper.displayMethodInfo('ao', 'var')">Parameters Description</a>
+%
+% VERSION:     $Id: var.m,v 1.40 2011/04/19 18:48:11 ingo Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = var(varargin)
+  
+  % Check if the method was called by another method
+  callerIsMethod = utils.helper.callerIsMethod;
+  
+  % Settings
+  operatorName = 'var';
+  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
+  end
+  
+  % Here we are forced to collect objects so that we can check that each ao
+  % is the correct type for doing diag.
+  as = utils.helper.collect_objects(varargin(:), 'ao', in_names);
+  
+  % We filter out the data3D objects here since we don't know what to do
+  % with them so far.
+  aos = [];
+  for kk=1:numel(as)
+    if isa(as(kk).data, 'data3D')
+      warning('!!! Skipping ao [%s] - %s can''t operate on data3D objects at the moment.', as(kk).name, operatorName);
+    else
+      aos = [aos as(kk)];
+    end
+  end
+  if isempty(aos) % try for getInfo
+    out = ao.applymethod(0, callerIsMethod, in_names, operatorName, dxFcn, @getInfo, @getDefaultPlist, varargin{:});
+    varargout{1} = out;
+    return
+  end
+  
+  
+  copyObjects = nargout>0;
+  [bs, pl] = ao.applymethod(copyObjects, callerIsMethod, in_names, operatorName, dxFcn, @getInfo, @getDefaultPlist, varargin{:});
+  
+  bs = fixAxisData(bs, pl);
+  
+  if isa(bs, 'ao')
+    % Clear errors
+    bs.clearErrors(pl);
+  end
+  
+  % set outputs
+  varargout = utils.helper.setoutputs(nargout, bs);
+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
+