本文整理匯總了Python中pandas.core.indexing.maybe_droplevels方法的典型用法代碼示例。如果您正苦於以下問題：Python indexing.maybe_droplevels方法的具體用法？Python indexing.maybe_droplevels怎麽用？Python indexing.maybe_droplevels使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類pandas.core.indexing的用法示例。
在下文中一共展示了indexing.maybe_droplevels方法的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: _getitem_multilevel
# 需要導入模塊: from pandas.core import indexing [as 別名]
# 或者: from pandas.core.indexing import maybe_droplevels [as 別名]
def _getitem_multilevel(self, key):
info = self._info_axis
loc = info.get_loc(key)
if isinstance(loc, (slice, np.ndarray)):
new_index = info[loc]
result_index = maybe_droplevels(new_index, key)
slices = [loc] + [slice(None)] * (self._AXIS_LEN - 1)
new_values = self.values[slices]
d = self._construct_axes_dict(self._AXIS_ORDERS[1:])
d[self._info_axis_name] = result_index
result = self._constructor(new_values, **d)
return result
else:
return self._get_item_cache(key) 示例2: _getitem_multilevel
# 需要導入模塊: from pandas.core import indexing [as 別名]
# 或者: from pandas.core.indexing import maybe_droplevels [as 別名]
def _getitem_multilevel(self, key):
info = self._info_axis
loc = info.get_loc(key)
if isinstance(loc, (slice, np.ndarray)):
new_index = info[loc]
result_index = maybe_droplevels(new_index, key)
slices = [loc] + [slice(None) for x in range(self._AXIS_LEN - 1)]
new_values = self.values[slices]
d = self._construct_axes_dict(self._AXIS_ORDERS[1:])
d[self._info_axis_name] = result_index
result = self._constructor(new_values, **d)
return result
else:
return self._get_item_cache(key) 示例3: get_value
# 需要導入模塊: from pandas.core import indexing [as 別名]
# 或者: from pandas.core.indexing import maybe_droplevels [as 別名]
def get_value(self, series, key):
# somewhat broken encapsulation
from pandas.core.indexing import maybe_droplevels
# Label-based
s = com.values_from_object(series)
k = com.values_from_object(key)
def _try_mi(k):
# TODO: what if a level contains tuples??
loc = self.get_loc(k)
new_values = series._values[loc]
new_index = self[loc]
new_index = maybe_droplevels(new_index, k)
return series._constructor(new_values, index=new_index,
name=series.name).__finalize__(self)
try:
return self._engine.get_value(s, k)
except KeyError as e1:
try:
return _try_mi(key)
except KeyError:
pass
try:
return libindex.get_value_at(s, k)
except IndexError:
raise
except TypeError:
# generator/iterator-like
if is_iterator(key):
raise InvalidIndexError(key)
else:
raise e1
except Exception: # pragma: no cover
raise e1
except TypeError:
# a Timestamp will raise a TypeError in a multi-index
# rather than a KeyError, try it here
# note that a string that 'looks' like a Timestamp will raise
# a KeyError! (GH5725)
if (isinstance(key, (datetime.datetime, np.datetime64)) or
(compat.PY3 and isinstance(key, compat.string_types))):
try:
return _try_mi(key)
except KeyError:
raise
except (IndexError, ValueError, TypeError):
pass
try:
return _try_mi(Timestamp(key))
except (KeyError, TypeError,
IndexError, ValueError, tslibs.OutOfBoundsDatetime):
pass
raise InvalidIndexError(key) 示例4: get_value
# 需要導入模塊: from pandas.core import indexing [as 別名]
# 或者: from pandas.core.indexing import maybe_droplevels [as 別名]
def get_value(self, series, key):
# somewhat broken encapsulation
from pandas.core.indexing import maybe_droplevels
# Label-based
s = com._values_from_object(series)
k = com._values_from_object(key)
def _try_mi(k):
# TODO: what if a level contains tuples??
loc = self.get_loc(k)
new_values = series._values[loc]
new_index = self[loc]
new_index = maybe_droplevels(new_index, k)
return series._constructor(new_values, index=new_index,
name=series.name).__finalize__(self)
try:
return self._engine.get_value(s, k)
except KeyError as e1:
try:
return _try_mi(key)
except KeyError:
pass
try:
return libindex.get_value_at(s, k)
except IndexError:
raise
except TypeError:
# generator/iterator-like
if is_iterator(key):
raise InvalidIndexError(key)
else:
raise e1
except Exception: # pragma: no cover
raise e1
except TypeError:
# a Timestamp will raise a TypeError in a multi-index
# rather than a KeyError, try it here
# note that a string that 'looks' like a Timestamp will raise
# a KeyError! (GH5725)
if (isinstance(key, (datetime.datetime, np.datetime64)) or
(compat.PY3 and isinstance(key, compat.string_types))):
try:
return _try_mi(key)
except (KeyError):
raise
except:
pass
try:
return _try_mi(Timestamp(key))
except:
pass
raise InvalidIndexError(key) 示例5: get_value
# 需要導入模塊: from pandas.core import indexing [as 別名]
# 或者: from pandas.core.indexing import maybe_droplevels [as 別名]
def get_value(self, series, key):
# somewhat broken encapsulation
from pandas.core.indexing import maybe_droplevels
# Label-based
s = _values_from_object(series)
k = _values_from_object(key)
def _try_mi(k):
# TODO: what if a level contains tuples??
loc = self.get_loc(k)
new_values = series._values[loc]
new_index = self[loc]
new_index = maybe_droplevels(new_index, k)
return series._constructor(new_values, index=new_index,
name=series.name).__finalize__(self)
try:
return self._engine.get_value(s, k)
except KeyError as e1:
try:
return _try_mi(key)
except KeyError:
pass
try:
return libindex.get_value_at(s, k)
except IndexError:
raise
except TypeError:
# generator/iterator-like
if is_iterator(key):
raise InvalidIndexError(key)
else:
raise e1
except Exception: # pragma: no cover
raise e1
except TypeError:
# a Timestamp will raise a TypeError in a multi-index
# rather than a KeyError, try it here
# note that a string that 'looks' like a Timestamp will raise
# a KeyError! (GH5725)
if (isinstance(key, (datetime.datetime, np.datetime64)) or
(compat.PY3 and isinstance(key, compat.string_types))):
try:
return _try_mi(key)
except (KeyError):
raise
except:
pass
try:
return _try_mi(Timestamp(key))
except:
pass
raise InvalidIndexError(key)