From 1582ce8ba02cf5e905931ccf01a7acc70275a3d4 Mon Sep 17 00:00:00 2001
From: Bharat Lal <bharat.iisc@gmail.com>
Date: Mon, 9 Nov 2015 12:18:29 +0530
Subject: [PATCH] corrected computation of MSE in mllib docs

---
 docs/mllib-decision-tree.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/mllib-decision-tree.md b/docs/mllib-decision-tree.md
index f31c4f88936b..b5b454bc6924 100644
--- a/docs/mllib-decision-tree.md
+++ b/docs/mllib-decision-tree.md
@@ -439,7 +439,7 @@ Double testMSE =
     public Double call(Double a, Double b) {
       return a + b;
     }
-  }) / data.count();
+  }) / testData.count();
 System.out.println("Test Mean Squared Error: " + testMSE);
 System.out.println("Learned regression tree model:\n" + model.toDebugString());