Daniel@0: function pi = CPD_to_pi(CPD, msg_type, n, ps, msg, evidence)
Daniel@0: % CPD_TO_PI Compute pi vector (noisyor)
Daniel@0: % pi = CPD_to_pi(CPD, msg_type, n, ps, msg)
Daniel@0: % Pearl p188 eqn 4.57
Daniel@0:   
Daniel@0: switch msg_type
Daniel@0:  case 'd',
Daniel@0:    pi = sum_prod_CPD_and_pi_msgs(CPD, n, ps, msg);
Daniel@0:    pi = [pi 1-pi]';
Daniel@0:  case 'g', 
Daniel@0:   error('can''t convert noisy-or CPD to Gaussian pi')
Daniel@0: end