numpy.nditer.remove_axis
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nditer.remove_axis(i)
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Removes axis ifrom the iterator. Requires that the flag “multi_index” be enabled.
    © 2008–2016 NumPy Developers
Licensed under the NumPy License.
    https://docs.scipy.org/doc/numpy-1.11.0/reference/generated/numpy.nditer.remove_axis.html