[incubator-hivemall] 06/10: Revised UDF comment

[my...@apache.org]

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myui pushed a commit to branch HIVEMALL-253-2
in repository https://gitbox.apache.org/repos/asf/incubator-hivemall.git

commit dde8ec9a85a914e1515b605a606061c8db48bac8
Author: Makoto Yui <my...@apache.org>
AuthorDate: Mon Jun 10 15:40:19 2019 +0900

    Revised UDF comment
---
 core/src/main/java/hivemall/tools/map/MapRouletteUDF.java | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/core/src/main/java/hivemall/tools/map/MapRouletteUDF.java b/core/src/main/java/hivemall/tools/map/MapRouletteUDF.java
index 6964d60..084653b 100644
--- a/core/src/main/java/hivemall/tools/map/MapRouletteUDF.java
+++ b/core/src/main/java/hivemall/tools/map/MapRouletteUDF.java
@@ -50,11 +50,10 @@ import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector;
 import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils;
 
 /**
- * The map_roulette() can be use to do roulette, according to each map.entry 's weight.
+ * The map_roulette returns a map key based on weighted random sampling of map values.
  */
 @Description(name = "map_roulette", value = "_FUNC_(Map<K, number> map)"
-        + " - Returns the key K which determine to its weight , the bigger weight is ,the more probability K will return. "
-        + "Number is a probability value or a positive weight")
+        + " - Returns a map key based on weighted random sampling of map values")
 @UDFType(deterministic = false, stateful = false) // it is false because it return value base on probability
 public class MapRouletteUDF extends GenericUDF {