From 730ac90d144feb1efc008fdb173424ff2812cfca Mon Sep 17 00:00:00 2001
From: Lei Yan
Date: Thu, 10 Sep 2015 18:44:59 +0000
Subject: Fixed "TypeError: float argument required, not NoneType" about mean.
 Committer: Lei Yan <lei@penguin.uthsc.edu> On branch master

---
 wqflask/base/data_set.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wqflask/base/data_set.py b/wqflask/base/data_set.py
index e98258f6..e2db9ad7 100755
--- a/wqflask/base/data_set.py
+++ b/wqflask/base/data_set.py
@@ -1171,7 +1171,8 @@ class MrnaAssayDataSet(DataSet):
             
             mean = result[0] if result else 0
 
-            this_trait.mean = "%2.3f" % mean
+            if mean:
+                this_trait.mean = "%2.3f" % mean
 
             #LRS and its location
             this_trait.LRS_score_repr = 'N/A'
-- 
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