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diff toolboxes/FullBNT-1.0.7/bnt/CPDs/@noisyor_CPD/CPD_to_pi.m @ 0:e9a9cd732c1e tip

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first hg version after svn
author wolffd
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/@noisyor_CPD/CPD_to_pi.m	Tue Feb 10 15:05:51 2015 +0000
@@ -0,0 +1,12 @@
+function pi = CPD_to_pi(CPD, msg_type, n, ps, msg, evidence)
+% CPD_TO_PI Compute pi vector (noisyor)
+% pi = CPD_to_pi(CPD, msg_type, n, ps, msg)
+% Pearl p188 eqn 4.57
+  
+switch msg_type
+ case 'd',
+   pi = sum_prod_CPD_and_pi_msgs(CPD, n, ps, msg);
+   pi = [pi 1-pi]';
+ case 'g', 
+  error('can''t convert noisy-or CPD to Gaussian pi')
+end