comparison toolboxes/FullBNT-1.0.7/bnt/general/enumerate_scenarios.m @ 0:e9a9cd732c1e tip

first hg version after svn

+function [scenarios, log_probs] = enumerate_scenarios(bnet, evidence)
+% ENUMERATE_SCENARIOS Enumerate all assignments, and return the prob. of the non-zeros ones
+% function [scenarios, log_probs] = enumerate_scenarios(bnet, evidence)
+
+assert(isempty(bnet.cnodes));
+n = length(bnet.dag);
+observed = ~isemptycell(evidence);
+vals = cat(1,evidence{observed});
+vals = vals(:)';
+ns = bnet.node_sizes;
+
+log_probs = [];
+scenarios = [];
+for i=1:prod(ns)
+  inst = ind2subv(ns, i); % i'th instantiation
+  if isempty(vals) | inst(observed) == vals % agrees with evidence
+    ll = log_lik_complete(bnet, num2cell(inst(:)));
+    log_probs = [log_probs ll];
+    scenarios = [scenarios(:)' inst];
+  end
+end