take(self, indices: 'TakeIndexer', allow_fill: 'bool' = False, fill_value: 'Any' = None)
ExtensionArray.take is called by Series.__getitem__
, .loc
, iloc
, when :None:None:`indices` is a sequence of values. Additionally, it's called by Series.reindex
, or any other method that causes realignment, with a :None:None:`fill_value`.
Indices to be taken.
How to handle negative values in :None:None:`indices`.
False: negative values in :None:None:`indices` indicate positional indices from the right (the default). This is similar to numpy.take
.
True: negative values in :None:None:`indices` indicate missing values. These values are set to :None:None:`fill_value`. Any other other negative values raise a ValueError
.
Fill value to use for NA-indices when allow_fill
is True. This may be None
, in which case the default NA value for the type, self.dtype.na_value
, is used.
For many ExtensionArrays, there will be two representations of :None:None:`fill_value`: a user-facing "boxed" scalar, and a low-level physical NA value. :None:None:`fill_value` should be the user-facing version, and the implementation should handle translating that to the physical version for processing the take if necessary.
When the indices are out of bounds for the array.
When :None:None:`indices` contains negative values other than -1
and allow_fill
is True.
Take elements from an array.
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