From f90a7f2bcdc16589ea3eb6359247faad56697202 Mon Sep 17 00:00:00 2001
From: myui <yuin405@gmail.com>
Date: Tue, 17 Nov 2015 19:41:24 +0900
Subject: [PATCH] Fixed a bug in `merge` mehotd of `fm_predict`

---
 core/src/main/java/hivemall/fm/FMPredictGenericUDAF.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/src/main/java/hivemall/fm/FMPredictGenericUDAF.java b/core/src/main/java/hivemall/fm/FMPredictGenericUDAF.java
index 69dec01e..83b97294 100644
--- a/core/src/main/java/hivemall/fm/FMPredictGenericUDAF.java
+++ b/core/src/main/java/hivemall/fm/FMPredictGenericUDAF.java
@@ -298,8 +298,8 @@ void merge(final double o_ret, @Nullable final Object o_sumVjXj, @Nullable final
                 Object o2 = sumV2X2OI.getListElement(o_sumV2X2, f);
                 double d1 = doubleOI.get(o1);
                 double d2 = doubleOI.get(o2);
-                sumVjXj[f] = d1;
-                sumV2X2[f] = d2;
+                sumVjXj[f] += d1;
+                sumV2X2[f] += d2;
             }
         }