--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ao/len.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,79 @@
+% LEN overloads the length operator for Analysis objects. Length of the data samples.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: LEN overloads the length operator for Analysis objects.
+%              Number of data samples in the analysis objects.
+%              LEN(ao) is the length of the elements of ao_in.data.
+%
+% CALL:        l = len(ao_in);
+%
+% <a href="matlab:utils.helper.displayMethodInfo('ao', 'len')">Parameters Description</a>
+%
+% VERSION:     $Id: len.m,v 1.29 2011/05/17 15:06:10 mauro Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = len(varargin)
+
+  % Check if this is a call for parameters
+  if utils.helper.isinfocall(varargin{:})
+    varargout{1} = getInfo(varargin{3});
+    return
+  end
+  
+  % Check if the method was called by another method
+  callerIsMethod = utils.helper.callerIsMethod;
+
+  if ~callerIsMethod
+    % Collect input variable names
+    in_names = cell(size(varargin));
+    for ii = 1:nargin,in_names{ii} = inputname(ii);end
+    
+    % Collect all AOs and plists
+    [as, ao_invars] = utils.helper.collect_objects(varargin(:), 'ao', in_names);
+  else
+    % Assume the input is a single AO or a vector of AOs
+    as = varargin{1};
+  end
+
+  % go through analysis objects
+  out = zeros(size(as));
+  for jj = 1:numel(as)
+    out(jj) = numel(as(jj).data.getY);
+  end
+
+  % Set output
+  varargout = utils.helper.setoutputs(nargout, out);
+  
+end
+
+%--------------------------------------------------------------------------
+% Get Info Object
+%--------------------------------------------------------------------------
+function ii = getInfo(varargin)
+  if nargin == 1 && strcmpi(varargin{1}, 'None')
+    sets = {};
+    pl   = [];
+  else
+    sets = {'Default'};
+    pl   = getDefaultPlist;
+  end
+  % Build info object
+  ii = minfo(mfilename, 'ao', 'ltpda', utils.const.categories.helper, '$Id: len.m,v 1.29 2011/05/17 15:06:10 mauro Exp $', sets, pl);
+  ii.setModifier(false);
+end
+
+%--------------------------------------------------------------------------
+% Get Default Plist
+%--------------------------------------------------------------------------
+function plout = getDefaultPlist()
+  persistent pl;  
+  if ~exist('pl', 'var') || isempty(pl)
+    pl = buildplist();
+  end
+  plout = pl;  
+end
+
+function pl = buildplist()
+  pl = plist.EMPTY_PLIST;
+end