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First master exercise

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Nicolas Rougier 2014-05-27 22:01:03 +02:00
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@ -563,6 +563,19 @@ Master
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1. Given a two dimensional array, how to extract unique rows ?
.. code:: python
# Jaime Fernández del Río
Z = np.random.randint(0,2,(6,6))
T = np.ascontiguousarray(Z).view(np.dtype((np.void, Z.dtype.itemsize * Z.shape[1])))
_, idx = np.unique(T, return_index=True)
uZ = Z[idx]
.. note:: See `stackoverflow <http://stackoverflow.com/questions/16970982/find-unique-rows-in-numpy-array/>`_ for explanations.
Archmaster
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