5.3 MDS.py 文件源码

def test_MDS(*data):
    '''
    test MDS method
    :param data: train_data, train_value
    :return: None
    '''
    X,y=data
    for n in [4,3,2,1]:
        mds=manifold.MDS(n_components=n)
        mds.fit(X)
        print('stress(n_components={0}) : {1}'.format (n, str(mds.stress_)))