ndarray.astype()
numpy.ndarray.astype
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ndarray.astype(dtype, order='K', casting='unsafe', subok=True, copy=True) -
Copy of the array, cast to a specified type.
Parameters: dtype : str or dtype
Typecode or data-type to which the array is cast.
order : {‘C’, ‘F’, ‘A’, ‘K’}, optional
Controls the memory layout order of the result. ‘C’ means C order, ‘F’ means Fortran order, ‘A’ means ‘F’ order if all the arrays are Fortran contiguous, ‘C’ order otherwise, and ‘K’ means as close to the order the array elements appear in memory as possible. Default is ‘K’.
casting : {‘no’, ‘equiv’, ‘safe’, ‘same_kind’, ‘uns