Python: sorting an array with another array's elements as keys? -

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import numpy np x = np.array(range(10 * 30)).reshape(100, 3) y = np.array(range(1010, 10, -10)) res = sorted(x, key = lambda y:y) #valueerror: truth value of array more 1 element ambiguous. use a.any() or a.all() res = sorted(x, key=y) #typeerror: 'tuple' object not callable

try argsort:

import numpy np x = np.array(range(10 * 30)).reshape(100, 3) y = np.array(range(1010, 10, -10)) args = y.argsort(axis = 0) print x[args]

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