本文整理汇总了Python中patsy.eval.EvalEnvironment.eval方法的典型用法代码示例。如果您正苦于以下问题：Python EvalEnvironment.eval方法的具体用法？Python EvalEnvironment.eval怎么用？Python EvalEnvironment.eval使用的例子？那么恭喜您, 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patsy.eval.EvalEnvironment的用法示例。
在下文中一共展示了EvalEnvironment.eval方法的1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: qplot
# 需要导入模块: from patsy.eval import EvalEnvironment [as 别名]
# 或者: from patsy.eval.EvalEnvironment import eval [as 别名]
def qplot(x=None, y=None, data=None, facets=None, margins=False,
geom='auto', xlim=None, ylim=None, log='', main=None,
xlab=None, ylab=None, asp=None, **kwargs):
"""
Quick plot
Parameters
----------
x : str | array_like
x aesthetic
y : str | array_like
y aesthetic
data : dataframe
Data frame to use (optional). If not specified,
will create one, extracting arrays from the
current environment.
geom : str | list
*geom(s)* to do the drawing. If ``auto``, defaults
to 'point' if ``x`` and ``y`` are specified or
'histogram' if only ``x`` is specified.
xlim : tuple
x-axis limits
ylim : tuple
y-axis limits
log : str in ``{'x', 'y', 'xy'}``
Which variables to log transform.
main : str
Plot title
xlab : str
x-axis label
ylab : str
y-axis label
asp : str | float
The y/x aspect ratio.
**kwargs : dict
Arguments passed on to the geom.
Returns
-------
p: ggplot
ggplot object
"""
# Extract all recognizable aesthetic mappings from the parameters
# String values e.g "I('red')", "I(4)" are not treated as mappings
environment = EvalEnvironment.capture(1)
aesthetics = {} if x is None else {'x': x}
if y is not None:
aesthetics['y'] = y
def is_mapping(value):
"""
Return True if value is not enclosed in I() function
"""
with suppress(AttributeError):
return not (value.startswith('I(') and value.endswith(')'))
return True
def I(value):
return value
I_env = EvalEnvironment([{'I': I}])
for ae in six.viewkeys(kwargs) & all_aesthetics:
value = kwargs[ae]
if is_mapping(value):
aesthetics[ae] = value
else:
kwargs[ae] = I_env.eval(value)
# List of geoms
if is_string(geom):
geom = [geom]
elif isinstance(geom, tuple):
geom = list(geom)
if data is None:
data = pd.DataFrame()
# Work out plot data, and modify aesthetics, if necessary
def replace_auto(lst, str2):
"""
Replace all occurences of 'auto' in with str2
"""
for i, value in enumerate(lst):
if value == 'auto':
lst[i] = str2
return lst
if 'auto' in geom:
if 'sample' in aesthetics:
replace_auto(geom, 'qq')
elif y is None:
# If x is discrete we choose geom_bar &
# geom_histogram otherwise. But we need to
# evaluate the mapping to find out the dtype
env = environment.with_outer_namespace(
{'factor': pd.Categorical})
if isinstance(aesthetics['x'], six.string_types):
#.........这里部分代码省略.........