[mlpack-git] master: Serialize number of classes correctly. (1a55288)

[gitdub at big.cc.gt.atl.ga.us]

Repository : https://github.com/mlpack/mlpack

On branch  : master
Link       : https://github.com/mlpack/mlpack/compare/de9cc4b05069e1fa4793d9355f2f595af5ff45d2...6070527af14296cd99739de6c62666cc5d2a2125

>---------------------------------------------------------------

commit 1a55288e2a3d89466c5df21d6636665a93fa4481
Author: Ryan Curtin <ryan at ratml.org>
Date:   Tue Oct 27 08:45:23 2015 -0700

    Serialize number of classes correctly.


>---------------------------------------------------------------

1a55288e2a3d89466c5df21d6636665a93fa4481
 .../methods/hoeffding_trees/hoeffding_numeric_split_impl.hpp      | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/mlpack/methods/hoeffding_trees/hoeffding_numeric_split_impl.hpp b/src/mlpack/methods/hoeffding_trees/hoeffding_numeric_split_impl.hpp
index 5f573db..8f72d17 100644
--- a/src/mlpack/methods/hoeffding_trees/hoeffding_numeric_split_impl.hpp
+++ b/src/mlpack/methods/hoeffding_trees/hoeffding_numeric_split_impl.hpp
@@ -200,6 +200,12 @@ void HoeffdingNumericSplit<FitnessFunction, ObservationType>::Serialize(
       labels.zeros(observationsBeforeBinning);
     }
 
+    // Save the number of classes.
+    size_t numClasses;
+    if (Archive::is_saving::value)
+      numClasses = sufficientStatistics.n_rows;
+    ar & data::CreateNVP(numClasses, "numClasses");
+
     for (size_t i = 0; i < samplesSeen; ++i)
     {
       std::ostringstream oss;
@@ -215,7 +221,7 @@ void HoeffdingNumericSplit<FitnessFunction, ObservationType>::Serialize(
     {
       // Clean other objects.
       splitPoints.clear();
-      sufficientStatistics.clear();
+      sufficientStatistics.zeros(numClasses, bins);
     }
   }
 }