made fix_newtons a bit more flexible

rowers/dataprep.py

@@ -1269,13 +1269,13 @@ def datafusion(id1,id2,columns,offset):
     
     return df
 
-def fix_newtons(id=0):
+def fix_newtons(id=0,limit=3000):
     # rowdata,row = getrowdata_db(id=id,doclean=False,convertnewtons=False)
     rowdata = getsmallrowdata_db(['peakforce'],ids=[id],doclean=False)
     try:
         #avgforce = rowdata['averageforce']
         peakforce = rowdata['peakforce']
-        if peakforce.mean() > 3000:
+        if peakforce.mean() > limit:
             w = Workout.objects.get(id=id)
             print "fixing ",id
             rowdata = rdata(w.csvfilename)