From 1f04adbf166838b70c386ed66ae313c47d0ed7fc Mon Sep 17 00:00:00 2001
From: Sander Roosendaal <roosendaalsander@gmail.com>
Date: Tue, 16 May 2017 12:49:39 +0200
Subject: [PATCH] bug fix

---
 rowers/views.py | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/rowers/views.py b/rowers/views.py
index 79547d54..82cb4450 100644
--- a/rowers/views.py
+++ b/rowers/views.py
@@ -4398,12 +4398,14 @@ def workout_stats_view(request,id=0,message="",successmessage=""):
     try:
         hrdrift = ((pwr1/hr1)-(pwr2/hr2))/(pwr1/hr1)
         hrdrift *= 100.
-        otherstats['hrdrift'] = {
-            'verbose_name': 'Heart Rate Drift',
-            'value': int(100*hrdrift)/100.,
-            'unit': '%',
-        }
-    except ZeroDivisionError:
+        if not np.isnan(hrdrift):
+            hrdrift = int(100*hrdrift)/100.
+            otherstats['hrdrift'] = {
+                'verbose_name': 'Heart Rate Drift',
+                'value': hrdrift,
+                'unit': '%',
+            }
+    except ZeroDivisionError,ValueError:
         pass