From 974bd0510e3b744a788b322433fac186ae719c20 Mon Sep 17 00:00:00 2001
From: David Schnur <dnschnur@gmail.com>
Date: Mon, 16 Jul 2012 16:06:30 -0400
Subject: [PATCH] Skip entries whose labelFormatter returns null.

---
 jquery.flot.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/jquery.flot.js b/jquery.flot.js
index 72032a2..95f5698 100644
--- a/jquery.flot.js
+++ b/jquery.flot.js
@@ -2126,10 +2126,13 @@
             for (var i = 0; i < series.length; ++i) {
                 s = series[i];
                 if (s.label) {
-                    entries.push({
-                        label: lf ? lf(s.label, s) : s.label,
-                        color: s.color
-                    });
+                    label = lf ? lf(s.label, s) : s.label;
+                    if (label) {
+                        entries.push({
+                            label: label,
+                            color: s.color
+                        });
+                    }
                 }
             }