Use iloc instead of take

Author: Roger Thomas

pandas/core/algorithms.py

@@ -955,7 +955,7 @@ def select_n_frame(frame, columns, n, method, keep):
             inds = series.argsort()[::-1][:n]
         else:
             inds = series.argsort()[:n]
-        values = series.take(inds)
+        values = series.iloc[inds]
         if i != len(columns) - 1 and values.duplicated().any():
             # This series has duplicate values => we must consider all rows in
             # frame that match `values`