XGBRanker documentation: missing default objective (dmlc#8347)

luca-s · web-flow · commit 5647fc654271 · 2022-10-18T10:43:29.000+08:00
diff --git a/python-package/xgboost/sklearn.py b/python-package/xgboost/sklearn.py
@@ -1783,6 +1783,10 @@ def fit(
     "Implementation of the Scikit-Learn API for XGBoost Ranking.",
     ["estimators", "model"],
     end_note="""
+        .. note::
+
+            The default objectivefor XGBRanker is "rank:pairwise"
+
         .. note::
 
             A custom objective function is currently not supported by XGBRanker.
