图像生成失败！错误信息：
Traceback (most recent call last):
  File "D:\site\w3school\example\ml\ml_hierarchial_clustering_3_mpl.py", line 18, in <module>
    hierarchical_cluster = AgglomerativeClustering(
        n_clusters=2,      # ��������
        affinity='euclidean',  # ���������ʽ
        linkage='ward'     # ���ӷ�ʽ
    )
TypeError: AgglomerativeClustering.__init__() got an unexpected keyword argument 'affinity'