From 5c213e98bf7721de20e6bc938eaa40349cba883e Mon Sep 17 00:00:00 2001
From: wufangjie <wufangjie1223@126.com>
Date: Fri, 28 Jul 2017 08:06:59 +0800
Subject: MAINT: Make `setxor1d' a bit clearer and speed it up

---
 numpy/lib/arraysetops.py | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

(limited to 'numpy/lib/arraysetops.py')

diff --git a/numpy/lib/arraysetops.py b/numpy/lib/arraysetops.py
index a454b8725..aa3a05e12 100644
--- a/numpy/lib/arraysetops.py
+++ b/numpy/lib/arraysetops.py
@@ -375,12 +375,8 @@ def setxor1d(ar1, ar2, assume_unique=False):
         return aux
 
     aux.sort()
-#    flag = ediff1d( aux, to_end = 1, to_begin = 1 ) == 0
     flag = np.concatenate(([True], aux[1:] != aux[:-1], [True]))
-#    flag2 = ediff1d( flag ) == 0
-#    flag2 = flag[1:] == flag[:-1]
-#    return aux[flag2]
-    return aux[np.logical_and(flag[1:], flag[:-1])]
+    return aux[flag[1:] & flag[:-1]]
 
 
 def in1d(ar1, ar2, assume_unique=False, invert=False):
-- 
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