Mercurial > hg > camir-aes2014
annotate toolboxes/FullBNT-1.0.7/bnt/CPDs/@discrete_CPD/CPD_to_pi.m @ 0:e9a9cd732c1e tip
first hg version after svn
| author | wolffd |
|---|---|
| date | Tue, 10 Feb 2015 15:05:51 +0000 |
| parents | |
| children |
| rev | line source |
|---|---|
| wolffd@0 | 1 function pi = CPD_to_pi(CPD, msg_type, n, ps, msg, evidence) |
| wolffd@0 | 2 % COMPUTE_PI Compute pi vector (discrete) |
| wolffd@0 | 3 % pi = compute_pi(CPD, msg_type, n, ps, msg, evidence) |
| wolffd@0 | 4 % Pearl p183 eq 4.51 |
| wolffd@0 | 5 |
| wolffd@0 | 6 switch msg_type |
| wolffd@0 | 7 case 'd', |
| wolffd@0 | 8 T = prod_CPT_and_pi_msgs(CPD, n, ps, msg); |
| wolffd@0 | 9 pi = pot_to_marginal(marginalize_pot(T, n)); |
| wolffd@0 | 10 pi = pi.T(:); |
| wolffd@0 | 11 case 'g', |
| wolffd@0 | 12 error('can only convert discrete CPD to Gaussian pi if observed') |
| wolffd@0 | 13 end |