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diff toolboxes/FullBNT-1.0.7/bnt/inference/static/@gaussian_inf_engine/marginal_nodes.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/inference/static/@gaussian_inf_engine/marginal_nodes.m	Tue Feb 10 15:05:51 2015 +0000
@@ -0,0 +1,15 @@
+function marginal = marginal_nodes(engine, query)
+% MARGINAL_NODES Compute the marginal on the specified query nodes (gaussian)
+% marginal = marginal_nodes(engine, query)
+
+% Compute sum_{Hsum} Pr(Hkeep, Hsum | o)
+H = engine.hnodes;
+bnet = bnet_from_engine(engine);
+ns = bnet.node_sizes;
+Hkeep = myintersect(H, query);
+Hsum = mysetdiff(H, Hkeep);
+
+[marginal.mu, marginal.Sigma] = marginalize_gaussian(engine.Hmu, engine.HSigma, Hkeep, Hsum, ns);
+marginal.domain = query;
+marginal.T = 1;
+