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authorziejd22017-09-28 15:04:40 -0500
committerziejd22017-09-28 15:04:40 -0500
commit8070dc963753142bb86c4ed698d91fd623ed28e7 (patch)
treed0f6dd8fc46a49b819aa55c1a90faa14d8448883 /sourcecodes/bnt-master/SLP/learning/@jtree_inf_engine2/marginal_nodes.m
parent7cc31810d53176e805532b2789955f4eedbce6bb (diff)
downloadBNW-8070dc963753142bb86c4ed698d91fd623ed28e7.tar.gz
BNW using Octave instead of Matlab.
This version of BNW should perform the same as the original version. The only difference is that it uses Octave instead of Matlab when running BayesNet Toolbox during parameter learning.

I am calling this BNW_1.02. It can be accessed at:
compbio.uthsc.edu/BNW_1.02
Diffstat (limited to 'sourcecodes/bnt-master/SLP/learning/@jtree_inf_engine2/marginal_nodes.m')
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diff --git a/sourcecodes/bnt-master/SLP/learning/@jtree_inf_engine2/marginal_nodes.m b/sourcecodes/bnt-master/SLP/learning/@jtree_inf_engine2/marginal_nodes.m
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+function marginal = marginal_nodes(engine, query, add_ev)
+% MARGINAL_NODES Compute the marginal on the specified query nodes (jtree)
+% marginal = marginal_nodes(engine, query, add_ev)
+%
+% 'query' must be a subset of some clique; an error will be raised if not.
+% add_ev is an optional argument; if 1, we will "inflate" the marginal of observed nodes
+% to their original size, adding 0s to the positions which contradict the evidence
+
+if nargin < 3, add_ev = 0; end
+
+c = clq_containing_nodes(engine, query);
+if c == -1
+  error(['no clique contains ' num2str(query)]);
+end
+marginal = pot_to_marginal(marginalize_pot(engine.clpot{c}, query, engine.maximize));
+
+if add_ev
+  bnet = bnet_from_engine(engine);
+  %marginal = add_ev_to_dmarginal(marginal, engine.evidence, bnet.node_sizes);
+  marginal = add_evidence_to_gmarginal(marginal, engine.evidence, bnet.node_sizes, bnet.cnodes);
+end
+