in Flags.allows_duplicate_labels(self, value) 94 if not value: 95 for ax in obj.axes: ---> 96 ax._maybe_check_unique() 98 self._allows_duplicate_labels = value File ~/work/pandas/pandas/pandas/core/indexes/base.py:715, in Index._maybe_check_unique(...
(self, t, force) 4469 "indexing.html#returning-a-view-versus-a-copy" 4470 ) 4471 4472 if value == "raise": -> 4473 raise SettingWithCopyError(t) 4474 if value == "warn": 4475 warnings.warn(t, SettingWithCopyWarning
DataFrame.xs() returns a value error if a non-unique multi-index is used and the level kwarg is called. However, if the level karg is not called, or a tuple is passed the function behaves normally. import sys if sys.version[0] == '2': from StringIO import StringIO if sys.version...
_(self, other, method, **kwargs)6255 if other.attrs:6256 # We want attrs propagation to have minimal performance6257 # impact if attrs are not used; i.e. attrs is an empty dict.6258 # One could make the deepcopy unconditionally, but a deepcopy6259 # of an empty dict is 50x more ...
一个带有标签'a':'f'的切片对象(请注意,与通常的 Python 切片相反,当索引中存在时,起始和停止都包括在内!请参见使用标签切片)。 一个布尔数组。 一个callable,请参见通过 callable 选择。 In [45]: s1 = pd.Series(np.random.randn(6), index=list('abcdef'))In [46]: s1Out[46]:a 1.431256b ...
inIndex.reindex(self, target, method, level, limit, tolerance)4426raiseValueError("cannot handle a non-unique multi-index!")4427elifnotself.is_unique:4428# GH#42568->4429raiseValueError("cannot reindex on an axis with duplicate labels")4430else:4431indexer, _ = self.get_indexer_non_unique(...
Hence, here we are going to usegroupby()method first, then we will apply theagg()method on this groupby object and finally we will join the columns of groupby object with their respective values by mapping them into a list. Let us understand with the help of an example, ...
Thereset_index()function also comes in handy when dealing with multi-index DataFrames. Let’s create a multi-index DataFrame and see how to reset its index: index=pd.MultiIndex.from_tuples([(i,j)foriinrange(3)forjinrange(3)],names=['outer','inner'])df=pd.DataFrame({'A':range(9...
1. Introduction Whether we like it or not, in pandas we will come across to Series or DataFrame with multi-index. A multi-index often be generated fro
Pandas version checks I have checked that this issue has not already been reported. I have confirmed this bug exists on the latest version of pandas. I have confirmed this bug exists on the main branch of pandas. Reproducible Example df ...