FIX DBSCAN and TSNE are missing the pairwise estimator tag (#22814)

Raz Hoshia · web-flow · commit ae98150e411b · 2022-03-13T19:22:11.000+01:00
diff --git a/sklearn/cluster/_dbscan.py b/sklearn/cluster/_dbscan.py
@@ -458,3 +458,6 @@ def fit_predict(self, X, y=None, sample_weight=None):
         """
         self.fit(X, sample_weight=sample_weight)
         return self.labels_
+
+    def _more_tags(self):
+        return {"pairwise": self.metric == "precomputed"}
diff --git a/sklearn/manifold/_t_sne.py b/sklearn/manifold/_t_sne.py
@@ -1128,3 +1128,6 @@ def fit(self, X, y=None):
         """
         self.fit_transform(X)
         return self
+
+    def _more_tags(self):
+        return {"pairwise": self.metric == "precomputed"}
