added unduplication

rowers/dataprep.py

@@ -1128,6 +1128,11 @@ def datafusion(id1,id2,columns,offset):
     df = df.interpolate(method='linear',axis=0,limit_direction='both',
                         limit=10)
     df.fillna(method='bfill',inplace=True)
+
+    # Some new stuff to try out 
+    df = df.groupby('time',axis=0).mean()
+    df['time'] = df.index
+    df.reset_index(drop=True,inplace=True)
     
     df['time'] = df['time']/1000.
     df['pace'] = df['pace']/1000.