Fix: FutureWarning: The behavior of DataFrame.idxmin with all-NA values, or any-NA and ski pna=False, is deprecated. In a future version this will raise ValueError

Author: nkonts

src/barrier_method/barrier_method.py

@@ -124,7 +124,7 @@ def _identify_barrier_hit(self, barrier: pd.DataFrame) -> pd.Series:
         """
         # .idxmin() returns np.nan if no barriers have been hit
         # => .fillna(0) labels the "no barrier hit" condition
-        barrier = barrier.idxmin(axis=1).fillna(0).astype(int)
+        barrier = barrier.idxmin(axis=1, skipna=True).fillna(0).astype(int)
         # Correct for a possible look-ahead-bias & errors introduced by .fillna()
         barrier.iloc[-self.n:] = np.nan
         return barrier