本文整理汇总了Python中xray.Variable类的典型用法代码示例。如果您正苦于以下问题：Python Variable类的具体用法？Python Variable怎么用？Python Variable使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Variable类的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Python代码示例。
示例1: test_numpy_same_methods
def test_numpy_same_methods(self):
v = Variable([], np.float32(0.0))
self.assertEqual(v.item(), 0)
self.assertIs(type(v.item()), float)
v = Coordinate('x', np.arange(5))
self.assertEqual(2, v.searchsorted(2))
开发者ID:benjwadams，项目名称:xray，代码行数:7，代码来源:test_variable.py
示例2: test_items
def test_items(self):
data = np.random.random((10, 11))
v = Variable(['x', 'y'], data)
# test slicing
self.assertVariableIdentical(v, v[:])
self.assertVariableIdentical(v, v[...])
self.assertVariableIdentical(Variable(['y'], data[0]), v[0])
self.assertVariableIdentical(Variable(['x'], data[:, 0]), v[:, 0])
self.assertVariableIdentical(Variable(['x', 'y'], data[:3, :2]),
v[:3, :2])
# test array indexing
x = Variable(['x'], np.arange(10))
y = Variable(['y'], np.arange(11))
self.assertVariableIdentical(v, v[x.values])
self.assertVariableIdentical(v, v[x])
self.assertVariableIdentical(v[:3], v[x < 3])
self.assertVariableIdentical(v[:, 3:], v[:, y >= 3])
self.assertVariableIdentical(v[:3, 3:], v[x < 3, y >= 3])
self.assertVariableIdentical(v[:3, :2], v[x[:3], y[:2]])
self.assertVariableIdentical(v[:3, :2], v[range(3), range(2)])
# test iteration
for n, item in enumerate(v):
self.assertVariableIdentical(Variable(['y'], data[n]), item)
with self.assertRaisesRegexp(TypeError, 'iteration over a 0-d'):
iter(Variable([], 0))
# test setting
v.values[:] = 0
self.assertTrue(np.all(v.values == 0))
# test orthogonal setting
v[range(10), range(11)] = 1
self.assertArrayEqual(v.values, np.ones((10, 11)))
开发者ID:benjwadams，项目名称:xray，代码行数:31，代码来源:test_variable.py
示例3: test_concat
def test_concat(self):
u = self.eager_var
v = self.lazy_var
self.assertLazyAndIdentical(u, Variable.concat([v[:2], v[2:]], 'x'))
self.assertLazyAndIdentical(u[:2], Variable.concat([v[0], v[1]], 'x'))
self.assertLazyAndIdentical(
u[:3], Variable.concat([v[[0, 2]], v[[1]]], 'x', positions=[[0, 2], [1]]))
开发者ID:roxyboy，项目名称:xray，代码行数:7，代码来源:test_dask.py
示例4: setUp
def setUp(self):
self.attrs = {'attr1': 'value1', 'attr2': 2929}
self.x = np.random.random((10, 20))
self.v = Variable(['x', 'y'], self.x)
self.va = Variable(['x', 'y'], self.x, self.attrs)
self.ds = Dataset({'foo': self.v})
self.dv = self.ds['foo']
开发者ID:akleeman，项目名称:xray，代码行数:7，代码来源:test_dataarray.py
示例5: test_roll_consistency
def test_roll_consistency(self):
v = Variable(("x", "y"), np.random.randn(5, 6))
for axis, dim in [(0, "x"), (1, "y")]:
for shift in [-3, 0, 1, 7, 11]:
expected = np.roll(v.values, shift, axis=axis)
actual = v.roll(**{dim: shift}).values
self.assertArrayEqual(expected, actual)
开发者ID:PedroMDuarte，项目名称:xray，代码行数:8，代码来源:test_variable.py
示例6: test_data
def test_data(self):
v = Variable(['time', 'x'], self.d)
self.assertArrayEqual(v.values, self.d)
self.assertIs(source_ndarray(v.values), self.d)
with self.assertRaises(ValueError):
# wrong size
v.values = np.random.random(5)
d2 = np.random.random((10, 3))
v.values = d2
self.assertIs(source_ndarray(v.values), d2)
开发者ID:cossatot，项目名称:xray，代码行数:10，代码来源:test_variable.py
示例7: test_concat_attrs
def test_concat_attrs(self):
# different or conflicting attributes should be removed
v = self.cls("a", np.arange(5), {"foo": "bar"})
w = self.cls("a", np.ones(5))
expected = self.cls("a", np.concatenate([np.arange(5), np.ones(5)]))
self.assertVariableIdentical(expected, Variable.concat([v, w], "a"))
w.attrs["foo"] = 2
self.assertVariableIdentical(expected, Variable.concat([v, w], "a"))
w.attrs["foo"] = "bar"
expected.attrs["foo"] = "bar"
self.assertVariableIdentical(expected, Variable.concat([v, w], "a"))
开发者ID:PedroMDuarte，项目名称:xray，代码行数:11，代码来源:test_variable.py
示例8: test_transpose
def test_transpose(self):
v = Variable(["time", "x"], self.d)
v2 = Variable(["x", "time"], self.d.T)
self.assertVariableIdentical(v, v2.transpose())
self.assertVariableIdentical(v.transpose(), v.T)
x = np.random.randn(2, 3, 4, 5)
w = Variable(["a", "b", "c", "d"], x)
w2 = Variable(["d", "b", "c", "a"], np.einsum("abcd->dbca", x))
self.assertEqual(w2.shape, (5, 3, 4, 2))
self.assertVariableIdentical(w2, w.transpose("d", "b", "c", "a"))
self.assertVariableIdentical(w, w2.transpose("a", "b", "c", "d"))
w3 = Variable(["b", "c", "d", "a"], np.einsum("abcd->bcda", x))
self.assertVariableIdentical(w, w3.transpose("a", "b", "c", "d"))
开发者ID:PedroMDuarte，项目名称:xray，代码行数:13，代码来源:test_variable.py
示例9: test_reduce_keep_attrs
def test_reduce_keep_attrs(self):
_attrs = {'units': 'test', 'long_name': 'testing'}
v = Variable(['x', 'y'], self.d, _attrs)
# Test dropped attrs
vm = v.mean()
self.assertEqual(len(vm.attrs), 0)
self.assertEqual(vm.attrs, OrderedDict())
# Test kept attrs
vm = v.mean(keep_attrs=True)
self.assertEqual(len(vm.attrs), len(_attrs))
self.assertEqual(vm.attrs, _attrs)
开发者ID:benjwadams，项目名称:xray，代码行数:14，代码来源:test_variable.py
示例10: test_data_and_values
def test_data_and_values(self):
v = Variable(["time", "x"], self.d)
self.assertArrayEqual(v.data, self.d)
self.assertArrayEqual(v.values, self.d)
self.assertIs(source_ndarray(v.values), self.d)
with self.assertRaises(ValueError):
# wrong size
v.values = np.random.random(5)
d2 = np.random.random((10, 3))
v.values = d2
self.assertIs(source_ndarray(v.values), d2)
d3 = np.random.random((10, 3))
v.data = d3
self.assertIs(source_ndarray(v.data), d3)
开发者ID:PedroMDuarte，项目名称:xray，代码行数:14，代码来源:test_variable.py
示例11: test_count
def test_count(self):
expected = Variable([], 3)
actual = Variable(['x'], [1, 2, 3, np.nan]).count()
self.assertVariableIdentical(expected, actual)
v = Variable(['x'], np.array(['1', '2', '3', np.nan], dtype=object))
actual = v.count()
self.assertVariableIdentical(expected, actual)
actual = Variable(['x'], [True, False, True]).count()
self.assertVariableIdentical(expected, actual)
self.assertEqual(actual.dtype, int)
expected = Variable(['x'], [2, 3])
actual = Variable(['x', 'y'], [[1, 0, np.nan], [1, 1, 1]]).count('y')
self.assertVariableIdentical(expected, actual)
开发者ID:benjwadams，项目名称:xray，代码行数:16，代码来源:test_variable.py
示例12: test_broadcast_equals
def test_broadcast_equals(self):
v1 = Variable((), np.nan)
v2 = Variable(('x'), [np.nan, np.nan])
self.assertTrue(v1.broadcast_equals(v2))
self.assertFalse(v1.equals(v2))
self.assertFalse(v1.identical(v2))
v3 = Variable(('x'), [np.nan])
self.assertTrue(v1.broadcast_equals(v3))
self.assertFalse(v1.equals(v3))
self.assertFalse(v1.identical(v3))
self.assertFalse(v1.broadcast_equals(None))
v4 = Variable(('x'), [np.nan] * 3)
self.assertFalse(v2.broadcast_equals(v4))
开发者ID:benjwadams，项目名称:xray，代码行数:16，代码来源:test_variable.py
示例13: test_roll
def test_roll(self):
v = Variable("x", [1, 2, 3, 4, 5])
self.assertVariableIdentical(v, v.roll(x=0))
self.assertIsNot(v, v.roll(x=0))
expected = Variable("x", [5, 1, 2, 3, 4])
self.assertVariableIdentical(expected, v.roll(x=1))
self.assertVariableIdentical(expected, v.roll(x=-4))
self.assertVariableIdentical(expected, v.roll(x=6))
expected = Variable("x", [4, 5, 1, 2, 3])
self.assertVariableIdentical(expected, v.roll(x=2))
self.assertVariableIdentical(expected, v.roll(x=-3))
with self.assertRaisesRegexp(ValueError, "dimension"):
v.roll(z=0)
开发者ID:PedroMDuarte，项目名称:xray，代码行数:17，代码来源:test_variable.py
示例14: test_concat_fixed_len_str
def test_concat_fixed_len_str(self):
# regression test for #217
for kind in ["S", "U"]:
x = self.cls("animal", np.array(["horse"], dtype=kind))
y = self.cls("animal", np.array(["aardvark"], dtype=kind))
actual = Variable.concat([x, y], "animal")
expected = Variable("animal", np.array(["horse", "aardvark"], dtype=kind))
self.assertVariableEqual(expected, actual)
开发者ID:PedroMDuarte，项目名称:xray，代码行数:8，代码来源:test_variable.py
示例15: test_concat_number_strings
def test_concat_number_strings(self):
# regression test for #305
a = self.cls("x", ["0", "1", "2"])
b = self.cls("x", ["3", "4"])
actual = Variable.concat([a, b], dim="x")
expected = Variable("x", np.arange(5).astype(str).astype(object))
self.assertVariableIdentical(expected, actual)
self.assertEqual(expected.dtype, object)
self.assertEqual(type(expected.values[0]), str)
开发者ID:PedroMDuarte，项目名称:xray，代码行数:9，代码来源:test_variable.py
示例16: test_concat_fixed_len_str
def test_concat_fixed_len_str(self):
# regression test for #217
for kind in ['S', 'U']:
x = self.cls('animal', np.array(['horse'], dtype=kind))
y = self.cls('animal', np.array(['aardvark'], dtype=kind))
actual = Variable.concat([x, y], 'animal')
expected = Variable(
'animal', np.array(['horse', 'aardvark'], dtype=kind))
self.assertVariableEqual(expected, actual)
开发者ID:benjwadams，项目名称:xray，代码行数:9，代码来源:test_variable.py
示例17: test_get_axis_num
def test_get_axis_num(self):
v = Variable(["x", "y", "z"], np.random.randn(2, 3, 4))
self.assertEqual(v.get_axis_num("x"), 0)
self.assertEqual(v.get_axis_num(["x"]), (0,))
self.assertEqual(v.get_axis_num(["x", "y"]), (0, 1))
self.assertEqual(v.get_axis_num(["z", "y", "x"]), (2, 1, 0))
with self.assertRaisesRegexp(ValueError, "not found in array dim"):
v.get_axis_num("foobar")
开发者ID:PedroMDuarte，项目名称:xray，代码行数:8，代码来源:test_variable.py
示例18: test_isel
def test_isel(self):
v = Variable(['time', 'x'], self.d)
self.assertVariableIdentical(v.isel(time=slice(None)), v)
self.assertVariableIdentical(v.isel(time=0), v[0])
self.assertVariableIdentical(v.isel(time=slice(0, 3)), v[:3])
self.assertVariableIdentical(v.isel(x=0), v[:, 0])
with self.assertRaisesRegexp(ValueError, 'do not exist'):
v.isel(not_a_dim=0)
开发者ID:benjwadams，项目名称:xray，代码行数:8，代码来源:test_variable.py
示例19: test_index_and_concat_datetime
def test_index_and_concat_datetime(self):
# regression test for #125
date_range = pd.date_range('2011-09-01', periods=10)
for dates in [date_range, date_range.values,
date_range.to_pydatetime()]:
expected = self.cls('t', dates)
for times in [[expected[i] for i in range(10)],
[expected[i:(i + 1)] for i in range(10)],
[expected[[i]] for i in range(10)]]:
actual = Variable.concat(times, 't')
self.assertEqual(expected.dtype, actual.dtype)
self.assertArrayEqual(expected, actual)
开发者ID:benjwadams，项目名称:xray，代码行数:12，代码来源:test_variable.py
示例20: test_missing_values
def test_missing_values(self):
values = np.array([0, 1, np.nan, 3])
data = da.from_array(values, chunks=(2,))
eager_var = Variable("x", values)
lazy_var = Variable("x", data)
self.assertLazyAndIdentical(eager_var, lazy_var.fillna(lazy_var))
self.assertLazyAndIdentical(Variable("x", range(4)), lazy_var.fillna(2))
self.assertLazyAndIdentical(eager_var.count(), lazy_var.count())
开发者ID:jjhelmus，项目名称:xray，代码行数:9，代码来源:test_dask.py
注：本文中的xray.Variable类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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