本文整理汇总了Python中numpy.core.numeric.nan方法的典型用法代码示例。如果您正苦于以下问题：Python numeric.nan方法的具体用法？Python numeric.nan怎么用？Python numeric.nan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.numeric的用法示例。
在下文中一共展示了numeric.nan方法的2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: stdout_automatic_parser
# 需要导入模块: from numpy.core import numeric [as 别名]
# 或者: from numpy.core.numeric import nan [as 别名]
def stdout_automatic_parser(result):
"""
Try and automatically convert strings formatted as tables into a matrix.
Under the hood, this function essentially applies the genfromtxt function
to the stdout.
Args:
result (dict): the result to parse.
"""
np.seterr(all='raise')
parsed = {}
# By default, if dtype is None, the order Numpy tries to convert a string
# to a value is: bool, int, float. We don't like this, since it would give
# us a mixture of integers and doubles in the output, if any integers
# existed in the data. So, we modify the StringMapper's default mapper to
# skip the int check and directly convert numbers to floats.
oldmapper = np.lib._iotools.StringConverter._mapper
np.lib._iotools.StringConverter._mapper = [(nx.bool_, np.lib._iotools.str2bool, False),
(nx.floating, float, nx.nan),
(nx.complexfloating, complex, nx.nan + 0j),
(nx.longdouble, nx.longdouble, nx.nan)]
file_contents = result['output']['stdout']
with warnings.catch_warnings():
warnings.simplefilter("ignore")
parsed = np.genfromtxt(io.StringIO(file_contents))
# Here we restore the original mapper, so no side-effects remain.
np.lib._iotools.StringConverter._mapper = oldmapper
return parsed 示例2: automatic_parser
# 需要导入模块: from numpy.core import numeric [as 别名]
# 或者: from numpy.core.numeric import nan [as 别名]
def automatic_parser(result, dtypes={}, converters={}):
"""
Try and automatically convert strings formatted as tables into nested
list structures.
Under the hood, this function essentially applies the genfromtxt function
to all files in the output, and passes it the additional kwargs.
Args:
result (dict): the result to parse.
dtypes (dict): a dictionary containing the dtype specification to perform
parsing for each available filename. See the numpy genfromtxt
documentation for more details on how to format these.
"""
np.seterr(all='raise')
parsed = {}
# By default, if dtype is None, the order Numpy tries to convert a string
# to a value is: bool, int, float. We don't like this, since it would give
# us a mixture of integers and doubles in the output, if any integers
# existed in the data. So, we modify the StringMapper's default mapper to
# skip the int check and directly convert numbers to floats.
oldmapper = np.lib._iotools.StringConverter._mapper
np.lib._iotools.StringConverter._mapper = [(nx.bool_, np.lib._iotools.str2bool, False),
(nx.floating, float, nx.nan),
(nx.complexfloating, complex, nx.nan + 0j),
(nx.longdouble, nx.longdouble, nx.nan)]
for filename, contents in result['output'].items():
if dtypes.get(filename) is None:
dtypes[filename] = None
if converters.get(filename) is None:
converters[filename] = None
with warnings.catch_warnings():
warnings.simplefilter("ignore")
parsed[filename] = np.genfromtxt(io.StringIO(contents),
dtype=dtypes[filename],
converters=converters[filename]
).tolist()
# Here we restore the original mapper, so no side-effects remain.
np.lib._iotools.StringConverter._mapper = oldmapper
return parsed