Round down in sampleLogNormal to guarantee upper bound

ankurdave · ankurdave · commit 16385984ae25 · 2014-09-17T16:14:35.000-07:00
diff --git a/graphx/src/main/scala/org/apache/spark/graphx/util/GraphGenerators.scala b/graphx/src/main/scala/org/apache/spark/graphx/util/GraphGenerators.scala
@@ -118,7 +118,7 @@ object GraphGenerators {
       val Z = rand.nextGaussian()
       X = math.exp(mu + sigma*Z)
     }
-    math.round(X.toFloat)
+    math.floor(X).toInt
   }
 
   /**
