differences among numpy array types -

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is there overview of different types of arrays in numpy? instance, gather there structured arrays, record arrays (in places used synonymously , in others said different, esp. since there recarray submodule seems different usual structured arrays), arrays records can indexed name (not fields), , dataframe class on python cookbook site; masked arrays... these separate ndarrays or there inheritance connecting them?

the nearest i've seen such overview this: http://docs.scipy.org/doc/numpy/reference/arrays.classes.html


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