def dbdiv(levels, f, axis=None):
    levels = np.asanyarray(levels)
    return 10.0 * np.log10((10.0**(levels/10.0) / f).sum(axis=axis))
%prog group tabfile > tabfile.grouped
dataset/ETHPy150Open python-acoustics/python-acoustics/acoustics/decibel.py/dbdiv--crossover with--dataset/ETHPy150Open tanghaibao/jcvi/formats/base.py/group