modifiedtanimoto.py 文件源码

def calc_mean_onbit_density(bitsets, number_of_bits):
    """Calculate the mean density of bits that are on in bitsets collection.

    Args:
        bitsets (list[intbitset.intbitset]): List of fingerprints
        number_of_bits: Number of bits for all fingerprints

    Returns:
        float: Mean on bit density

    """
    all_nr_onbits = [len(v) for v in bitsets]
    mean_onbit = fsum(all_nr_onbits) / float(len(all_nr_onbits))
    density = mean_onbit / number_of_bits
    return float(density)