This is documentation for an old release of NumPy (version 1.3.). Read this page Search for this page in the documentation of the latest stable release (version > 1.17).
numpy.ndarray.ndim
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ndarray.ndim
Number of array dimensions.
Examples
>>> x = np.array([1,2,3])
>>> x.ndim
1
>>> y = np.zeros((2,3,4))
>>> y.ndim
3