本文整理汇总了Python中numpy.core.array方法的典型用法代码示例。如果您正苦于以下问题：Python core.array方法的具体用法？Python core.array怎么用？Python core.array使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类numpy.core的用法示例。
在下文中一共展示了core.array方法的12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，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_scalar
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_scalar(self):
x = np.inf
actual = np.isposinf(x)
expected = np.True_
assert_equal(actual, expected)
assert_equal(type(actual), type(expected))
x = -3.4
actual = np.fix(x)
expected = np.float64(-3.0)
assert_equal(actual, expected)
assert_equal(type(actual), type(expected))
out = np.array(0.0)
actual = np.fix(x, out=out)
assert_(actual is out) 示例2: test_fix_with_subclass
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_fix_with_subclass(self):
class MyArray(nx.ndarray):
def __new__(cls, data, metadata=None):
res = nx.array(data, copy=True).view(cls)
res.metadata = metadata
return res
def __array_wrap__(self, obj, context=None):
obj.metadata = self.metadata
return obj
a = nx.array([1.1, -1.1])
m = MyArray(a, metadata='foo')
f = ufl.fix(m)
assert_array_equal(f, nx.array([1, -1]))
assert_(isinstance(f, MyArray))
assert_equal(f.metadata, 'foo') 示例3: test_fix_with_subclass
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_fix_with_subclass(self):
class MyArray(nx.ndarray):
def __new__(cls, data, metadata=None):
res = nx.array(data, copy=True).view(cls)
res.metadata = metadata
return res
def __array_wrap__(self, obj, context=None):
obj.metadata = self.metadata
return obj
a = nx.array([1.1, -1.1])
m = MyArray(a, metadata='foo')
f = ufl.fix(m)
assert_array_equal(f, nx.array([1, -1]))
assert_(isinstance(f, MyArray))
assert_equal(f.metadata, 'foo')
# check 0d arrays don't decay to scalars
m0d = m[0,...]
m0d.metadata = 'bar'
f0d = ufl.fix(m0d)
assert_(isinstance(f0d, MyArray))
assert_equal(f0d.metadata, 'bar') 示例4: test_fix_with_subclass
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_fix_with_subclass(self):
class MyArray(nx.ndarray):
def __new__(cls, data, metadata=None):
res = nx.array(data, copy=True).view(cls)
res.metadata = metadata
return res
def __array_wrap__(self, obj, context=None):
obj.metadata = self.metadata
return obj
a = nx.array([1.1, -1.1])
m = MyArray(a, metadata='foo')
f = ufl.fix(m)
assert_array_equal(f, nx.array([1, -1]))
assert_(isinstance(f, MyArray))
assert_equal(f.metadata, 'foo') 示例5: test_isposinf
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_isposinf(self):
a = nx.array([nx.inf, -nx.inf, nx.nan, 0.0, 3.0, -3.0])
out = nx.zeros(a.shape, bool)
tgt = nx.array([True, False, False, False, False, False])
res = ufl.isposinf(a)
assert_equal(res, tgt)
res = ufl.isposinf(a, out)
assert_equal(res, tgt)
assert_equal(out, tgt)
a = a.astype(np.complex)
with assert_raises(TypeError):
ufl.isposinf(a) 示例6: test_isneginf
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_isneginf(self):
a = nx.array([nx.inf, -nx.inf, nx.nan, 0.0, 3.0, -3.0])
out = nx.zeros(a.shape, bool)
tgt = nx.array([False, True, False, False, False, False])
res = ufl.isneginf(a)
assert_equal(res, tgt)
res = ufl.isneginf(a, out)
assert_equal(res, tgt)
assert_equal(out, tgt)
a = a.astype(np.complex)
with assert_raises(TypeError):
ufl.isneginf(a) 示例7: test_fix
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_fix(self):
a = nx.array([[1.0, 1.1, 1.5, 1.8], [-1.0, -1.1, -1.5, -1.8]])
out = nx.zeros(a.shape, float)
tgt = nx.array([[1., 1., 1., 1.], [-1., -1., -1., -1.]])
res = ufl.fix(a)
assert_equal(res, tgt)
res = ufl.fix(a, out)
assert_equal(res, tgt)
assert_equal(out, tgt)
assert_equal(ufl.fix(3.14), 3) 示例8: test_fix_with_subclass
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_fix_with_subclass(self):
class MyArray(nx.ndarray):
def __new__(cls, data, metadata=None):
res = nx.array(data, copy=True).view(cls)
res.metadata = metadata
return res
def __array_wrap__(self, obj, context=None):
if isinstance(obj, MyArray):
obj.metadata = self.metadata
return obj
def __array_finalize__(self, obj):
self.metadata = getattr(obj, 'metadata', None)
return self
a = nx.array([1.1, -1.1])
m = MyArray(a, metadata='foo')
f = ufl.fix(m)
assert_array_equal(f, nx.array([1, -1]))
assert_(isinstance(f, MyArray))
assert_equal(f.metadata, 'foo')
# check 0d arrays don't decay to scalars
m0d = m[0,...]
m0d.metadata = 'bar'
f0d = ufl.fix(m0d)
assert_(isinstance(f0d, MyArray))
assert_equal(f0d.metadata, 'bar') 示例9: rand
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def rand(*args):
"""Returns an array of random numbers with the given shape.
This only uses the standard library, so it is useful for testing purposes.
"""
import random
from numpy.core import zeros, float64
results = zeros(args, float64)
f = results.flat
for i in range(len(f)):
f[i] = random.random()
return results 示例10: test_isposinf
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_isposinf(self):
a = nx.array([nx.inf, -nx.inf, nx.nan, 0.0, 3.0, -3.0])
out = nx.zeros(a.shape, bool)
tgt = nx.array([True, False, False, False, False, False])
res = ufl.isposinf(a)
assert_equal(res, tgt)
res = ufl.isposinf(a, out)
assert_equal(res, tgt)
assert_equal(out, tgt) 示例11: test_isneginf
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_isneginf(self):
a = nx.array([nx.inf, -nx.inf, nx.nan, 0.0, 3.0, -3.0])
out = nx.zeros(a.shape, bool)
tgt = nx.array([False, True, False, False, False, False])
res = ufl.isneginf(a)
assert_equal(res, tgt)
res = ufl.isneginf(a, out)
assert_equal(res, tgt)
assert_equal(out, tgt) 示例12: test_fix
# 需要导入模块: from numpy import core [as 别名]
# 或者: from numpy.core import array [as 别名]
def test_fix(self):
a = nx.array([[1.0, 1.1, 1.5, 1.8], [-1.0, -1.1, -1.5, -1.8]])
out = nx.zeros(a.shape, float)
tgt = nx.array([[ 1., 1., 1., 1.], [-1., -1., -1., -1.]])
res = ufl.fix(a)
assert_equal(res, tgt)
res = ufl.fix(a, out)
assert_equal(res, tgt)
assert_equal(out, tgt)
assert_equal(ufl.fix(3.14), 3)