The motivation for this demo is that if you have an instance (say 'a') of a custom class that subclasses 'handle', then the command 'b = a;' will produce another reference 'b' to the same object as initially referenced by 'a', effectively creating a 'shallow' copy of the object.
The link to this demo contains a test class which contains the code necessary to produce a clone or 'deep' copy of its instance by way of a method and alternatively, through its constructor.
A test script is provided to demonstrate the cloning of instances of the test class.
Written by Sam Oliver & Bobby Nedelkovski
The MathWorks Australia Pty Ltd
Copyright 2009, The MathWorks, Inc.