diff toolboxes/FullBNT-1.0.7/graph/check_jtree_property.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/graph/check_jtree_property.m	Tue Feb 10 15:05:51 2015 +0000
@@ -0,0 +1,18 @@
+function check_jtree_property(cliques_containing_node, jtree)
+% CHECK_JTREE_PROPERTY Raise an error if the graph does not satisfy the join tree property.
+% check_jtree_property(cliques_containing_node, jtree_adj_mat)
+%
+% The join tree property says:
+% For each node n in the dag, compute the node-induced subgraph G by looking at all the cliques
+% that contain n, and make sure G forms a connected graph. 
+% This ensures that local propagation leads to global consistency.
+
+num_bn_nodes = length(cliques_containing_node);
+directed = 0;
+for i=1:num_bn_nodes
+  cs = cliques_containing_node{i};
+  G = jtree(cs,cs);
+  if ~connected_graph(G, directed)
+    error(['node ' num2str(i) ' violates jtree property']);
+  end
+end