Test zero within region inequality

pysal · Jan 16, 2025 · 8eceda2 · 8eceda2
1 parent f583126
commit 8eceda2
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/inequality/tests/test_theil.py b/inequality/tests/test_theil.py
@@ -47,6 +47,12 @@ def test___init__(self):
                 ]
             ),
         )
+        y = numpy.array([0,0,0,10,10,10])
+        regions = numpy.array([0,0,0,1,1,1])
+        theil_d = TheilD(y, regions)
+        numpy.testing.assert_almost_equal(theil_d.T, 0.6931471805599453)
+        numpy.testing.assert_almost_equal(theil_d.bg, 0.6931471805599453)
+        numpy.testing.assert_almost_equal(theil_d.wg, 0)
 
 
 class TestTheilDSim: