From c988ad77bbcea6307527a051793882cad82a36fe Mon Sep 17 00:00:00 2001
From: Mathieu Blondel <mathieu@mblondel.org>
Date: Fri, 13 Jan 2012 19:22:02 +0900
Subject: [PATCH] Add safe_mask to developer doc.

---
 doc/developers/utilities.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/developers/utilities.rst b/doc/developers/utilities.rst
index f1fa601790..7ff6c330da 100644
--- a/doc/developers/utilities.rst
+++ b/doc/developers/utilities.rst
@@ -257,6 +257,11 @@ Helper Functions
   a 1-d numpy.ndarray.  Currently used in
   ``sklearn.datasets._svmlight_format.pyx``.
 
+- :func:`safe_mask`: Help function to convert a mask to the format expected
+  by the numpy array or scipy sparse matrix on which to use it (sparse
+  matrices support integer indices only while numpy arrays support both
+  boolean masks and integer indices).
+
 
 Warnings and Exceptions
 =======================
-- 
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