Explicitly implement logNormalizationConstant

2023-01-16 17:32:54 -08:00 · 2023-01-16 17:32:54 -08:00 · 3a446d7008
parent 207c9b7236
commit 3a446d7008
1 changed files with 7 additions and 0 deletions
--- a/gtsam/discrete/DiscreteConditional.h
+++ b/gtsam/discrete/DiscreteConditional.h
@ -254,6 +254,13 @@ class GTSAM_EXPORT DiscreteConditional
    return -error(x);
  }

+  /**
+   * logNormalizationConstant K is just zero, such that
+   * logProbability(x) = log(evaluate(x)) = - error(x)
+   * and hence error(x) = - log(evaluate(x)) > 0 for all x.
+   */
+  double logNormalizationConstant() const override { return 0.0; }
+
  /// @}

 #ifdef GTSAM_ALLOW_DEPRECATED_SINCE_V42