From 7f897ebe8d418afc3400dd7ad5ea47a14e330f58 Mon Sep 17 00:00:00 2001
From: thequackdaddy <pquack@gmail.com>
Date: Wed, 16 Nov 2016 14:25:19 -0600
Subject: [PATCH] [PATCH] Simplified commit

Gbp-Pq: Name up_3239.patch
---
 statsmodels/tools/grouputils.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/statsmodels/tools/grouputils.py b/statsmodels/tools/grouputils.py
index 8e91bba..481ee99 100644
--- a/statsmodels/tools/grouputils.py
+++ b/statsmodels/tools/grouputils.py
@@ -403,6 +403,7 @@ class Grouping(object):
         """
         # TODO: refactor this
         groups = self.index.get_level_values(level).unique()
+        groups = np.array(groups)
         groups.sort()
         if isinstance(self.index, MultiIndex):
             self.slices = [self.index.get_loc_level(x, level=level)[0]
-- 
2.30.2