[SciPy-User] numpy.lexsort

[Gabriele Brambilla]

Hi I want to order a numpy.array using lexsort.

>>> import numpy as np

>>> surnames = ['Hertz', 'Galilei', 'Hertz']

>>> names = ['Heinrich', 'Galilao', 'Gustav']

>>> ind = np.lexsort((names,surnames))

>>> ind

array([1, 2, 0])

But how can I have an array ordered according to this indexes?

I would do

surnames2 = surnames.copy()

for i, a in enumerate(ind):

       surnames2[i] = surnames[a]

But I think there should be another way without writing the cycle by myself.

Thanks

GB
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