diff toolboxes/FullBNT-1.0.7/bnt/inference/online/@jtree_2TBN_inf_engine/marginal_nodes.m @ 0:e9a9cd732c1e tip

first hg version after svn

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolboxes/FullBNT-1.0.7/bnt/inference/online/@jtree_2TBN_inf_engine/marginal_nodes.m	Tue Feb 10 15:05:51 2015 +0000
@@ -0,0 +1,32 @@
+function marginal = marginal_nodes(engine, b, nodes, t, add_ev, is_fam)
+% function marginal = marginal_nodes(engine, b, nodes, t, add_ev, is_fam) (jtree_2TBN)
+
+if nargin < 6, is_fam = 0; end
+ss = engine.slice_size;
+
+if ~is_fam & (t > 1) & all(nodes<=ss)
+  nodes = nodes + ss;
+end
+
+if t==1
+  c = clq_containing_nodes(engine.jtree_engine1, nodes, is_fam);
+else
+  c = clq_containing_nodes(engine.jtree_engine, nodes, is_fam);
+end
+if c == -1
+  error(['no clique contains ' nodes])
+end
+bigpot = b.clpot{c};
+pot = marginalize_pot(bigpot, nodes, engine.maximize);
+marginal = pot_to_marginal(pot);
+
+% we convert the domain to the unrolled numbering system
+% so that add_ev_to_dmarginal (maybe called in update_ess) extracts the right evidence.
+if t > 1
+  marginal.domain = nodes+(t-2)*engine.slice_size;
+end
+assert(~add_ev);
+
+
+
+