Python scipy.spatial.distance.chebyshev() Examples

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Example #1
Source File: utils.py    From teneto with GNU General Public License v3.0 5 votes vote down vote up 
def get_distance_function(requested_metric):
    """
    This function returns a specified distance function.

    Paramters
    ---------

    requested_metric: str
        Distance function. Can be any function in: https://docs.scipy.org/doc/scipy/reference/spatial.distance.html.

    Returns
    -------

    requested_metric : distance function

    """
    distance_options = {
        'braycurtis': distance.braycurtis,
        'canberra': distance.canberra,
        'chebyshev': distance.chebyshev,
        'cityblock': distance.cityblock,
        'correlation': distance.correlation,
        'cosine': distance.cosine,
        'euclidean': distance.euclidean,
        'sqeuclidean': distance.sqeuclidean,
        'dice': distance.dice,
        'hamming': distance.hamming,
        'jaccard': distance.jaccard,
        'kulsinski': distance.kulsinski,
        'matching': distance.matching,
        'rogerstanimoto': distance.rogerstanimoto,
        'russellrao': distance.russellrao,
        'sokalmichener': distance.sokalmichener,
        'sokalsneath': distance.sokalsneath,
        'yule': distance.yule,
    }
    if requested_metric in distance_options:
        return distance_options[requested_metric]
    else:
        raise ValueError('Distance function cannot be found.')