Function that transforms scores to ranks : takes a matrix with 2 columns with each row being of the form [object, score] and turns each row into the form [object, rank]. Highest score => rank 1

score2rank.py

import numpy as np


def score2rank(m):
    """ args:
            - m, a numpy matrix with 2 columns the 2nd of which should be numeric
        returns:
            - m with the second column's numbers switched for ranks
        example:
            m = [[a,5.8],    return = [[a,2],
                 [b,0.1],              [b,5],
                 [c,0.3],              [c,3],
                 [d,7.2],              [d,1],
                 [e,0.2]]              [e,4]]
    """
    m[np.argsort(m[:, 1], axis=0), 1] = [[i] for i in range(m.shape[0], 0, -1)]
    return m

This code is released under the .