added printSignature and evaluate

gtsam/discrete/DiscreteBayesTree.cpp

@@ -45,6 +45,16 @@ namespace gtsam {
     return Base::equals(other, tol);
   }
 
+  /* ************************************************************************* */
+  double DiscreteBayesTree::evaluate(
+      const DiscreteConditional::Values& values) const {
+    double result = 1.0;
+    for (const auto& root : roots_) {
+      result *= root->evaluate(values);
+    }
+    return result;
+  }
+
 } // \namespace gtsam
 
 

gtsam/discrete/DiscreteBayesTree.h

@@ -11,7 +11,8 @@
 
 /**
  * @file    DiscreteBayesTree.h
- * @brief   Discrete Bayes Tree, the result of eliminating a DiscreteJunctionTree
+ * @brief   Discrete Bayes Tree, the result of eliminating a
+ * DiscreteJunctionTree
  * @brief   DiscreteBayesTree
  * @author  Frank Dellaert
  * @author  Richard Roberts
@@ -22,8 +23,11 @@
 #include <gtsam/discrete/DiscreteBayesNet.h>
 #include <gtsam/discrete/DiscreteFactorGraph.h>
 #include <gtsam/inference/BayesTree.h>
+#include <gtsam/inference/Conditional.h>
 #include <gtsam/inference/BayesTreeCliqueBase.h>
 
+#include <string>
+
 namespace gtsam {
 
 // Forward declarations
@@ -32,16 +36,25 @@ namespace gtsam {
 
 /* ************************************************************************* */
 /** A clique in a DiscreteBayesTree */
-  class GTSAM_EXPORT DiscreteBayesTreeClique :
+class GTSAM_EXPORT DiscreteBayesTreeClique
-    public BayesTreeCliqueBase<DiscreteBayesTreeClique, DiscreteFactorGraph>
+    : public BayesTreeCliqueBase<DiscreteBayesTreeClique, DiscreteFactorGraph> {
-  {
  public:
   typedef DiscreteBayesTreeClique This;
-    typedef BayesTreeCliqueBase<DiscreteBayesTreeClique, DiscreteFactorGraph> Base;
+  typedef BayesTreeCliqueBase<DiscreteBayesTreeClique, DiscreteFactorGraph>
+      Base;
   typedef boost::shared_ptr<This> shared_ptr;
   typedef boost::weak_ptr<This> weak_ptr;
   DiscreteBayesTreeClique() {}
-    DiscreteBayesTreeClique(const boost::shared_ptr<DiscreteConditional>& conditional) : Base(conditional) {}
+  DiscreteBayesTreeClique(
+      const boost::shared_ptr<DiscreteConditional>& conditional)
+      : Base(conditional) {}
+
+  /// print index signature only
+  void printSignature(
+      const std::string& s = "Clique: ",
+      const KeyFormatter& formatter = DefaultKeyFormatter) const {
+    conditional_->printSignature(s, formatter);
+  }
 
   //** evaluate conditional probability of subtree for given Values */
   double evaluate(const DiscreteConditional::Values& values) const;
@@ -49,9 +62,8 @@ namespace gtsam {
 
 /* ************************************************************************* */
 /** A Bayes tree representing a Discrete density */
-  class GTSAM_EXPORT DiscreteBayesTree :
+class GTSAM_EXPORT DiscreteBayesTree
-    public BayesTree<DiscreteBayesTreeClique>
+    : public BayesTree<DiscreteBayesTreeClique> {
-  {
  private:
   typedef BayesTree<DiscreteBayesTreeClique> Base;
 
@@ -64,6 +76,9 @@ namespace gtsam {
 
   /** Check equality */
   bool equals(const This& other, double tol = 1e-9) const;
+
+  //** evaluate probability for given Values */
+  double evaluate(const DiscreteConditional::Values& values) const;
 };
 
-}
+}  // namespace gtsam

gtsam/discrete/DiscreteConditional.h

@@ -24,6 +24,8 @@
 #include <boost/shared_ptr.hpp>
 #include <boost/make_shared.hpp>
 
+#include <string>
+
 namespace gtsam {
 
 /**
@@ -92,6 +94,13 @@ public:
   /// @name Standard Interface
   /// @{
 
+  /// print index signature only
+  void printSignature(
+      const std::string& s = "Discrete Conditional: ",
+      const KeyFormatter& formatter = DefaultKeyFormatter) const {
+    static_cast<const BaseConditional*>(this)->print(s, formatter);
+  }
+
   /// Evaluate, just look up in AlgebraicDecisonTree
   virtual double operator()(const Values& values) const {
     return Potentials::operator()(values);

gtsam/inference/Conditional.h

@@ -65,6 +65,8 @@ namespace gtsam {
     Conditional(size_t nrFrontals) : nrFrontals_(nrFrontals) {}
 
     /// @}
+
+  public:
     /// @name Testable
     /// @{
 
@@ -76,7 +78,6 @@ namespace gtsam {
 
     /// @}
 
-  public:
     /// @name Standard Interface
     /// @{