Daniel@0: function pi = CPD_to_pi(CPD, msg_type, n, ps, msg, evidence)
Daniel@0: % CPD_TO_PI Compute the pi vector (root)
Daniel@0: % function pi = CPD_to_pi(CPD, msg_type, n, ps, msg, evidence)
Daniel@0: 
Daniel@0: self_ev = evidence{n};
Daniel@0: switch msg_type
Daniel@0:  case 'd',
Daniel@0:   error('root_CPD can''t create discrete msgs')
Daniel@0:  case 'g',
Daniel@0:   pi.mu = self_ev;
Daniel@0:   pi.Sigma = zeros(size(self_ev));
Daniel@0: end