--- a
+++ b/functions/@mmo/size.m
@@ -0,0 +1,66 @@
+% SIZE - size of memory mapped underlying array
+%
+% Author: Arnaud Delorme, SCCN, INC, UCSD, Nov. 2008
+
+% Copyright (C) 2008 Arnaud Delorme, SCCN, INC, UCSD
+%
+% This file is part of EEGLAB, see http://www.eeglab.org
+% for the documentation and details.
+%
+% Redistribution and use in source and binary forms, with or without
+% modification, are permitted provided that the following conditions are met:
+%
+% 1. Redistributions of source code must retain the above copyright notice,
+% this list of conditions and the following disclaimer.
+%
+% 2. Redistributions in binary form must reproduce the above copyright notice,
+% this list of conditions and the following disclaimer in the documentation
+% and/or other materials provided with the distribution.
+%
+% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+% THE POSSIBILITY OF SUCH DAMAGE.
+
+function [s varargout] = size(obj,dim)
+    
+    if obj.transposed
+        if length(obj.dimensions) ~= 2 && length(obj.dimensions) ~= 3
+            error('Transposed array must be 2 or 3 dims');
+        end
+        if length(obj.dimensions) == 2
+            tmpdimensions = [obj.dimensions(2) obj.dimensions(1)];
+        else
+            tmpdimensions = [obj.dimensions(3) obj.dimensions(1:end-1)];
+        end
+    else
+        tmpdimensions = obj.dimensions;
+    end
+    
+    s = tmpdimensions;
+    
+    if nargin > 1
+        if dim >length(s)
+            s = 1;
+        else
+            s = s(dim);
+        end
+    else
+        if nargout > 1
+            s = [s 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1];
+            alls = s;
+            s = s(1);
+            for index = 1:max(nargout,1)-1
+                varargout{index} = alls(index+1);
+            end
+        end
+    end
+    
+