From 9fa6548f7d6a8136101b00b9143ada1dd13d95ce Mon Sep 17 00:00:00 2001
From: Kevin Keraudren <kevin@klarismo.com>
Date: Sun, 8 May 2016 08:22:00 +0100
Subject: [PATCH] added mention of sklearn.utils.validation.check_random_state
 as a comment

---
 skimage/_shared/utils.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/skimage/_shared/utils.py b/skimage/_shared/utils.py
index db741814..4e947a0c 100644
--- a/skimage/_shared/utils.py
+++ b/skimage/_shared/utils.py
@@ -201,6 +201,7 @@ def check_random_state(seed):
     If seed is already a RandomState instance, return it.
     Otherwise raise ValueError.
     """
+    # Function originally from scikit-learn's module sklearn.utils.validation
     if seed is None or seed is np.random:
         return np.random.mtrand._rand
     if isinstance(seed, (numbers.Integral, np.integer)):