wolffd@0: function [pnodes, tnodes] = partition_dbn_nodes(intra, inter)
wolffd@0: % PARTITION_DBN_NODES Divide the nodes into a DBN into persistent and transient.
wolffd@0: % [pnodes, tnodes] = partition_dbn_nodes(intra, inter)
wolffd@0: % Persistent nodes have children in the next time slice, transient nodes do not.
wolffd@0:  
wolffd@0: ss = length(intra);
wolffd@0: pnodes = []; 
wolffd@0: tnodes = [];
wolffd@0: for i=1:ss
wolffd@0:   cs = children(inter, i);
wolffd@0:   if isempty(cs)
wolffd@0:     tnodes = [tnodes i];
wolffd@0:   else
wolffd@0:     pnodes = [pnodes i];
wolffd@0:   end
wolffd@0: end
wolffd@0: