Belief

   Belief constructor.

   Defines the basic belief. 
   Currently it include no information but is used for queries such as
   isa(b,'Belief') and to implement functions generic to all kind of
   beliefs.

0001 function b=Belief(varargin)
0002 %   Belief constructor.
0003 %
0004 %   Defines the basic belief.
0005 %   Currently it include no information but is used for queries such as
0006 %   isa(b,'Belief') and to implement functions generic to all kind of
0007 %   beliefs.
0008 
0009   switch nargin
0010     case 0
0011       b.dummy=1;
0012       b=class(b,'Belief');
0013       
0014     case 1
0015       if isa(varargin{1},'Belief')
0016         b=varargin{1};
0017       else
0018         error('Belief copy constructor with wrong parameter');
0019       end
0020   end
0021