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根据规则'safe'无法将数组数据从dtype('float64')转换为dtype('int64')
def plot_pca_scatter3D(pca_values, x, y): for name, label in [('1', 0), ('2', 1), ('3', 2), ('4', 3)]: ax.text3D(pca_values[y == label, 0].mean(), pca_values[y == label, 1].mean() + ...