ica.py 文件源码

def get_score_funcs():
    """Helper to get the score functions"""
    from scipy import stats
    from scipy.spatial import distance
    score_funcs = Bunch()
    xy_arg_dist_funcs = [(n, f) for n, f in vars(distance).items()
                         if isfunction(f) and not n.startswith('_')]
    xy_arg_stats_funcs = [(n, f) for n, f in vars(stats).items()
                          if isfunction(f) and not n.startswith('_')]
    score_funcs.update(dict((n, _make_xy_sfunc(f))
                            for n, f in xy_arg_dist_funcs
                            if _get_args(f) == ['u', 'v']))
    score_funcs.update(dict((n, _make_xy_sfunc(f, ndim_output=True))
                            for n, f in xy_arg_stats_funcs
                            if _get_args(f) == ['x', 'y']))
    return score_funcs