DOC document gamma in chi2_kernel.

rsivapr · Jan 15, 2013 · de87e91 · de87e91
1 parent deca12c
commit de87e91
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/sklearn/metrics/pairwise.py b/sklearn/metrics/pairwise.py
@@ -483,6 +483,9 @@ def chi2_kernel(X, Y=None, gamma=1.):
 
     Y : array of shape (n_samples_Y, n_features)
 
+    gamma : float, default=1.
+        Scaling parameter of the chi2 kernel.
+
     Returns
     -------
     kernel_matrix : array of shape (n_samples_X, n_samples_Y)