From 4a634fc709319a85a2bb74c1f48b885b029b1b0b Mon Sep 17 00:00:00 2001
From: Adam Vartanian <flooey@gmail.com>
Date: Mon, 3 May 2010 17:24:51 -0400
Subject: [PATCH] Some points may be null, not just undefined, so compare
 points via != with null (which will return false for both null and
 undefined).

---
 dygraph.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dygraph.js b/dygraph.js
index 077a329..eff107c 100644
--- a/dygraph.js
+++ b/dygraph.js
@@ -1529,7 +1529,7 @@ Dygraph.prototype.drawGraph_ = function(data) {
 
     var series = [];
     for (var j = 0; j < data.length; j++) {
-      if (data[j][i] !== undefined || !connectSeparatedPoints) {
+      if (data[j][i] != null || !connectSeparatedPoints) {
         var date = data[j][0];
         series.push([date, data[j][i]]);
       }
-- 
2.7.4