From ae854037f2a2dfa61ffcb3ec69da215ac27fb8fb Mon Sep 17 00:00:00 2001
From: Sander Roosendaal <roosendaalsander@gmail.com>
Date: Wed, 1 Mar 2017 12:04:44 +0100
Subject: [PATCH] added check if dataframe is not empty to Empower force curve

---
 rowers/interactiveplots.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/rowers/interactiveplots.py b/rowers/interactiveplots.py
index b8f6147e..e1fc7f60 100644
--- a/rowers/interactiveplots.py
+++ b/rowers/interactiveplots.py
@@ -154,6 +154,8 @@ def interactive_forcecurve(theworkouts,workstrokesonly=False):
 	except KeyError:
 	    pass
 
+    if rowdata.empty:
+	return "","No Valid Data Available","",""
     
     catchav = rowdata['catch'].mean()
     finishav = rowdata['finish'].mean()
@@ -348,7 +350,7 @@ def interactive_forcecurve(theworkouts,workstrokesonly=False):
     slider_spm_max = Slider(start=15.0, end=55,value=55.0, step=.1,
 		title="Max SPM",callback=callback)
     callback.args["maxspm"] = slider_spm_max
-    
+
     distmax = 100+100*int(rowdata['distance'].max()/100.)
     
     slider_dist_min = Slider(start=0,end=distmax,value=0,step=1,
@@ -386,6 +388,9 @@ def interactive_histoall(theworkouts):
     rowdata = dataprep.getsmallrowdata_db(['power'],ids=ids,doclean=True)
     rowdata.dropna(axis=0,how='any',inplace=True)
 
+    if rowdata.empty:
+	return "","No Valid Data Available","",""
+
     histopwr = rowdata['power'].values
     if len(histopwr) == 0:
         return "","No valid data available","",""