From e028e8443ff38e3617a1bdd0a2a3f5ec9b42d980 Mon Sep 17 00:00:00 2001
From: "Joseph E. Gonzalez" <joseph.e.gonzalez@gmail.com>
Date: Wed, 29 Oct 2014 00:13:56 -0700
Subject: [PATCH] fixing whitespace bug in loadLibSVMFile when parsing libSVM
 files

---
 mllib/src/main/scala/org/apache/spark/mllib/util/MLUtils.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mllib/src/main/scala/org/apache/spark/mllib/util/MLUtils.scala b/mllib/src/main/scala/org/apache/spark/mllib/util/MLUtils.scala
index dce0adffa6249..9b5e8539c3e83 100644
--- a/mllib/src/main/scala/org/apache/spark/mllib/util/MLUtils.scala
+++ b/mllib/src/main/scala/org/apache/spark/mllib/util/MLUtils.scala
@@ -76,7 +76,7 @@ object MLUtils {
       .map { line =>
         val items = line.split(' ')
         val label = items.head.toDouble
-        val (indices, values) = items.tail.map { item =>
+        val (indices, values) = items.tail.filter( pair => !pair.isEmpty ).map { item =>
           val indexAndValue = item.split(':')
           val index = indexAndValue(0).toInt - 1 // Convert 1-based indices to 0-based.
           val value = indexAndValue(1).toDouble