% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.1  1996/11/01  12:04:25  peterg
% %% Initial revision
% %% 
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% Copyright (c) P.J. Gawthrop, 1996.

%Causality of GY is same as that of a TF but with flipped effort/flow
bonds(2,:) = - bonds(2,:);
bonds(2,:) = bonds(2,2:-1:1);
[bonds,status] = TF_cause(bonds);
bonds(2,:) = - bonds(2,:);
bonds(2,:) = - bonds(2,2:-1:1);