comparison toolboxes/FullBNT-1.0.7/bnt/CPDs/@discrete_CPD/CPD_to_pi.m @ 0:e9a9cd732c1e tip

first hg version after svn

+function pi = CPD_to_pi(CPD, msg_type, n, ps, msg, evidence)
+% COMPUTE_PI Compute pi vector (discrete) 
+% pi = compute_pi(CPD, msg_type, n, ps, msg, evidence)
+% Pearl p183 eq 4.51
+
+switch msg_type
+  case 'd',
+   T = prod_CPT_and_pi_msgs(CPD, n, ps, msg);
+   pi = pot_to_marginal(marginalize_pot(T, n));
+   pi = pi.T(:);                   
+ case 'g', 
+  error('can only convert discrete CPD to Gaussian pi if observed')
+end