shaoheshaohe 发表于 2019-9-6 20:23:02

numpy.split

numpy.split(ary, indices_or_sections, axis=0)Split an array into multiple sub-arrays.
Parameters:ary : ndarrayArray to be divided into sub-arrays.indices_or_sections : int or 1-D arrayIf indices_or_sections is an integer, N, the array will be divided into N equal arrays along axis. If such a split is not possible, an error is raised.If indices_or_sections is a 1-D array of sorted integers, the entries indicate where along axisthe array is split. For example, would, for axis=0, result in

[*]ary[:2]
[*]ary
[*]ary

If an index exceeds the dimension of the array along axis, an empty sub-array is returned correspondingly.axis : int, optionalThe axis along which to split, default is 0.
Returns:sub-arrays : list of ndarraysA list of sub-arrays.
Raises:ValueErrorIf indices_or_sections is given as an integer, but a split does not result in equal division.

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