numpy.unique — NumPy v1.19 Manual

numpy.unique — NumPy v1.19 Manual 2020-6-29 · Returns unique ndarray. The sorted unique values. unique_indices ndarray, optional. The indices of the first occurrences of the unique values in the original array. Only provided if return_index is True.. unique_inverse ndarray, optional. The indices to reconstruct the original array from the unique … SQL SELECT DISTINCT 语句 SQL SELECT DISTINCT 语句 在表中,可能会包含重复值。这并不成问题,不过,有时您也许希望仅仅列出不同(distinct)的值。 关键词 DISTINCT 用于返回唯一不同的值。

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