Mercurial > hg > camir-aes2014
diff toolboxes/FullBNT-1.0.7/bnt/CPDs/@discrete_CPD/CPD_to_pi.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
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date | Tue, 10 Feb 2015 15:05:51 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toolboxes/FullBNT-1.0.7/bnt/CPDs/@discrete_CPD/CPD_to_pi.m Tue Feb 10 15:05:51 2015 +0000 @@ -0,0 +1,13 @@ +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