--- a
+++ b/preprocessOfApneaECG/BioSigKit/LayoutLib/layout/layoutRoot.m
@@ -0,0 +1,18 @@
+function folder = layoutRoot()
+%layoutRoot  Folder containing the GUI Layout Toolbox
+%
+%   folder = layoutRoot() returns the full path to the folder containing
+%   the GUI Layout Toolbox.
+%
+%   Examples:
+%   >> folder = layoutRoot()
+%   folder = 'C:\tools\layouts2\layout'
+%
+%   See also: layoutVersion
+
+%  Copyright 2009-2014 The MathWorks, Inc.
+%  $Revision: 980 $ $Date: 2014-09-28 14:27:26 -0400 (Sun, 28 Sep 2014) $
+
+folder = fileparts( mfilename( 'fullpath' ) );
+
+end % layoutRoot
\ No newline at end of file