solved AS/YS warning

kenmerkendewaarden/slotgemiddelden.py

@@ -29,7 +29,7 @@ def fit_models(mean_array_todate: pd.Series) -> pd.DataFrame:
 
 
     # We'll just use the years. This assumes that annual waterlevels are used that are stored left-padded, the mean waterlevel for 2020 is stored as 2020-1-1. This is not logical, but common practice.
-    allyears_DTI = pd.date_range(mean_array_todate.index.min(),mean_array_todate.index.max()+dt.timedelta(days=5*360),freq='AS')
+    allyears_DTI = pd.date_range(mean_array_todate.index.min(),mean_array_todate.index.max()+dt.timedelta(days=5*360),freq='YS')
     mean_array_allyears = pd.Series(mean_array_todate,index=allyears_DTI)
 
     df = pd.DataFrame({'year':mean_array_allyears.index.year, 'height':mean_array_allyears.values}) #TODO: make functions accept mean_array instead of df as argument?