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numpy.ndarray.dump
ndarray.dump(file)
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Dump a pickle of the array to the specified file. The array can be read back with pickle.load or numpy.load.
Parameters: file : str
A string naming the dump file.
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Licensed under the NumPy License.
https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.ndarray.dump.html