def test_binary_ops(self):
def testit():
for f, f2 in [(self.frame, self.frame2),
(self.mixed, self.mixed2)]:
for op, op_str in [('add', '+'), ('sub', '-'), ('mul', '*'),
('div', '/'), ('pow', '**')]:
if op == 'div':
op = getattr(operator, 'truediv', None)
else:
op = getattr(operator, op, None)
if op is not None:
result = expr._can_use_numexpr(op, op_str, f, f,
'evaluate')
self.assertNotEqual(result, f._is_mixed_type)
result = expr.evaluate(op, op_str, f, f,
use_numexpr=True)
expected = expr.evaluate(op, op_str, f, f,
use_numexpr=False)
tm.assert_numpy_array_equal(result, expected.values)
result = expr._can_use_numexpr(op, op_str, f2, f2,
'evaluate')
self.assertFalse(result)
expr.set_use_numexpr(False)
testit()
expr.set_use_numexpr(True)
expr.set_numexpr_threads(1)
testit()
expr.set_numexpr_threads()
testit()
def test_boolean_ops(self):
def testit():
for f, f2 in [ (self.frame, self.frame2), (self.mixed, self.mixed2) ]:
f11 = f
f12 = f + 1
f21 = f2
f22 = f2 + 1
for op, op_str in [('gt','>'),('lt','<'),('ge','>='),('le','<='),('eq','=='),('ne','!=')]:
op = getattr(operator,op)
result = expr._can_use_numexpr(op, op_str, f11, f12, 'evaluate')
self.assert_(result == (not f11._is_mixed_type))
result = expr.evaluate(op, op_str, f11, f12, use_numexpr=True)
expected = expr.evaluate(op, op_str, f11, f12, use_numexpr=False)
assert_array_equal(result,expected.values)
result = expr._can_use_numexpr(op, op_str, f21, f22, 'evaluate')
self.assert_(result == False)
expr.set_use_numexpr(False)
testit()
expr.set_use_numexpr(True)
expr.set_numexpr_threads(1)
testit()
expr.set_numexpr_threads()
testit()
def test_boolean_ops(self):
def testit():
for f, f2 in [ (self.frame, self.frame2), (self.mixed, self.mixed2) ]:
f11 = f
f12 = f + 1
f21 = f2
f22 = f2 + 1
for op, op_str in [('gt','>'),('lt','<'),('ge','>='),('le','<='),('eq','=='),('ne','!=')]:
op = getattr(operator,op)
result = expr._can_use_numexpr(op, op_str, f11, f12, 'evaluate')
self.assertNotEqual(result, f11._is_mixed_type)
result = expr.evaluate(op, op_str, f11, f12, use_numexpr=True)
expected = expr.evaluate(op, op_str, f11, f12, use_numexpr=False)
tm.assert_numpy_array_equal(result,expected.values)
result = expr._can_use_numexpr(op, op_str, f21, f22, 'evaluate')
self.assertFalse(result)
expr.set_use_numexpr(False)
testit()
expr.set_use_numexpr(True)
expr.set_numexpr_threads(1)
testit()
expr.set_numexpr_threads()
testit()
def setup(self, use_numexpr, threads):
self.df = DataFrame(np.random.randn(20000, 100))
self.df2 = DataFrame(np.random.randn(20000, 100))
if threads != 'default':
expr.set_numexpr_threads(threads)
if not use_numexpr:
expr.set_use_numexpr(False)
def setup(self, engine, threads):
self.df = DataFrame(np.random.randn(20000, 100))
self.df2 = DataFrame(np.random.randn(20000, 100))
self.df3 = DataFrame(np.random.randn(20000, 100))
self.df4 = DataFrame(np.random.randn(20000, 100))
if threads == 1:
expr.set_numexpr_threads(1)
def setup(self, engine, threads):
self.df = DataFrame(np.random.randn(20000, 100))
self.df2 = DataFrame(np.random.randn(20000, 100))
self.df3 = DataFrame(np.random.randn(20000, 100))
self.df4 = DataFrame(np.random.randn(20000, 100))
if threads == 1:
expr.set_numexpr_threads(1)
def test_binary_ops(self):
def testit():
for f, f2 in [(self.frame, self.frame2),
(self.mixed, self.mixed2)]:
for op, op_str in [('add', '+'), ('sub', '-'), ('mul', '*'),
('div', '/'), ('pow', '**')]:
# numpy >= 1.11 doesn't handle integers
# raised to integer powers
# https://github.com/pandas-dev/pandas/issues/15363
if op == 'pow' and not _np_version_under1p11:
continue
if op == 'div':
op = getattr(operator, 'truediv', None)
else:
op = getattr(operator, op, None)
if op is not None:
result = expr._can_use_numexpr(op, op_str, f, f,
'evaluate')
self.assertNotEqual(result, f._is_mixed_type)
result = expr.evaluate(op,
op_str,
f,
f,
use_numexpr=True)
expected = expr.evaluate(op,
op_str,
f,
f,
use_numexpr=False)
if isinstance(result, DataFrame):
tm.assert_frame_equal(result, expected)
else:
tm.assert_numpy_array_equal(
result, expected.values)
result = expr._can_use_numexpr(op, op_str, f2, f2,
'evaluate')
self.assertFalse(result)
expr.set_use_numexpr(False)
testit()
expr.set_use_numexpr(True)
expr.set_numexpr_threads(1)
testit()
expr.set_numexpr_threads()
testit()
def test_binary_ops(self):
def testit():
for f, f2 in [(self.frame, self.frame2),
(self.mixed, self.mixed2)]:
for op, op_str in [('add', '+'), ('sub', '-'), ('mul', '*'),
('div', '/'), ('pow', '**')]:
# numpy >= 1.11 doesn't handle integers
# raised to integer powers
# https://github.com/pandas-dev/pandas/issues/15363
if op == 'pow' and not _np_version_under1p11:
continue
if op == 'div':
op = getattr(operator, 'truediv', None)
else:
op = getattr(operator, op, None)
if op is not None:
result = expr._can_use_numexpr(op, op_str, f, f,
'evaluate')
self.assertNotEqual(result, f._is_mixed_type)
result = expr.evaluate(op, op_str, f, f,
use_numexpr=True)
expected = expr.evaluate(op, op_str, f, f,
use_numexpr=False)
if isinstance(result, DataFrame):
tm.assert_frame_equal(result, expected)
else:
tm.assert_numpy_array_equal(result,
expected.values)
result = expr._can_use_numexpr(op, op_str, f2, f2,
'evaluate')
self.assertFalse(result)
expr.set_use_numexpr(False)
testit()
expr.set_use_numexpr(True)
expr.set_numexpr_threads(1)
testit()
expr.set_numexpr_threads()
testit()
def test_where(self):
def testit():
for f in [self.frame, self.frame2, self.mixed, self.mixed2]:
for cond in [True, False]:
c = np.empty(f.shape, dtype=np.bool_)
c.fill(cond)
result = expr.where(c, f.values, f.values + 1)
expected = np.where(c, f.values, f.values + 1)
tm.assert_numpy_array_equal(result, expected)
expr.set_use_numexpr(False)
testit()
expr.set_use_numexpr(True)
expr.set_numexpr_threads(1)
testit()
expr.set_numexpr_threads()
testit()
def test_where(self):
def testit():
for f in [self.frame, self.frame2, self.mixed, self.mixed2]:
for cond in [True, False]:
c = np.empty(f.shape, dtype=np.bool_)
c.fill(cond)
result = expr.where(c, f.values, f.values + 1)
expected = np.where(c, f.values, f.values + 1)
tm.assert_numpy_array_equal(result, expected)
expr.set_use_numexpr(False)
testit()
expr.set_use_numexpr(True)
expr.set_numexpr_threads(1)
testit()
expr.set_numexpr_threads()
testit()
def setup(self):
if (expr is None):
raise NotImplementedError
self.df = DataFrame(np.random.randn(50000, 100))
self.df2 = DataFrame(np.random.randn(50000, 100))
expr.set_numexpr_threads(1)
def teardown(self, engine, threads):
expr.set_numexpr_threads()
def setup(self):
self.df = DataFrame(np.random.randn(50000, 100))
self.df2 = DataFrame(np.random.randn(50000, 100))
expr.set_numexpr_threads(1)
def teardown(self):
expr.set_numexpr_threads()
def teardown(self):
expr.set_numexpr_threads()
def setup(self):
self.df = DataFrame(np.random.randn(20000, 100))
self.df2 = DataFrame(np.random.randn(20000, 100))
expr.set_numexpr_threads(1)
def teardown(self, use_numexpr, threads):
expr.set_use_numexpr(True)
expr.set_numexpr_threads()
def setup(self):
if (expr is None):
raise NotImplementedError
self.df = DataFrame(np.random.randn(50000, 100))
self.df2 = DataFrame(np.random.randn(50000, 100))
expr.set_numexpr_threads(1)
def teardown(self, engine, threads):
expr.set_numexpr_threads()
