scikit-learn · DeaMariaLeon · Jun 16, 2025 · Jun 17, 2025 · Jun 17, 2025 · Jun 17, 2025
diff --git a/doc/whats_new/upcoming_changes/sklearn.utils/31564.enhancement.rst b/doc/whats_new/upcoming_changes/sklearn.utils/31564.enhancement.rst
@@ -0,0 +1,3 @@
+- The parameter table in an HTML representation of :class:`base.BaseEstimator`
+  now has a link to the online documentation for each parameter.
+  By :user:`Dea María Léon <DeaMariaLeon>`
diff --git a/sklearn/base.py b/sklearn/base.py
@@ -261,7 +261,7 @@ def get_params(self, deep=True):
             out[key] = value
         return out
 
-    def _get_params_html(self, deep=True):
+    def _get_params_html(self, deep=True, doc_link=""):
         """
         Get parameters for this estimator with a specific HTML representation.
 
@@ -271,6 +271,11 @@ def _get_params_html(self, deep=True):
             If True, will return the parameters for this estimator and
             contained subobjects that are estimators.
 
+        doc_link : str
+            URL to the estimator documentation.
+            Used for linking to the estimator's parameters documentation
+            available in HTML displays.
+
         Returns
         -------
         params : ParamsDict
@@ -319,7 +324,12 @@ def is_non_default(param_name, param_value):
             [name for name, value in ordered_out.items() if is_non_default(name, value)]
         )
 
-        return ParamsDict(ordered_out, non_default=non_default_ls)
+        return ParamsDict(
+            params=ordered_out,
+            non_default=non_default_ls,
+            estimator_class=self.__class__,
+            doc_link=doc_link,
+        )
 
     def set_params(self, **params):
         """Set the parameters of this estimator.