bugfix drive length

rowers/dataprep.py

@@ -273,6 +273,7 @@ def clean_df_stats(datadf,workstrokesonly=True,ignorehr=True,
             pass
 
 
+
         try:
             mask = datadf['catch'] > -30.
             datadf.loc[mask,'catch'] = np.nan
@@ -899,7 +900,7 @@ def getsmallrowdata_db(columns,ids=[],doclean=True,workstrokesonly=True,
                        convertnewtons=False):
     prepmultipledata(ids)
     data = read_cols_df_sql(ids,columns)
-
+    
     if convertnewtons:
         if 'peakforce' in columns:
             data['peakforce'] = data['peakforce']*lbstoN
@@ -910,6 +911,8 @@ def getsmallrowdata_db(columns,ids=[],doclean=True,workstrokesonly=True,
         data = clean_df_stats(data,ignorehr=True,
                               workstrokesonly=workstrokesonly)
 
+
+
     return data
 
 # Fetch both the workout and the workout stroke data (from CSV file)
@@ -1228,6 +1231,7 @@ def dataprep(rowdatadf,id=0,bands=True,barchart=True,otwpower=True,
 	    )
 	)
 
+
     if bands:
 	# HR bands
 	data['hr_ut2'] = rowdatadf.ix[:,'hr_ut2']
@@ -1276,7 +1280,7 @@ def dataprep(rowdatadf,id=0,bands=True,barchart=True,otwpower=True,
         arclength = (inboard-0.05)*(np.radians(finish)-np.radians(catch))
         if arclength.mean()>0:
             drivelength = arclength
-        else:
+        elif drivelength.mean() == 0:
             drivelength = driveenergy/(averageforce*4.44822)
 
         try: