“DataFrame“ object has no attribute ‘getformat‘

• 今天在处理一个多标签分类问题的时候，采用了自适应算法的建模策略。初始化MLkNN模型，拟合训练集'X_train, Y_train'之后，得到报错信息如下：

'DataFrame' object has no attribute 'getformat'

# 原因是参数数据类型不对，API要求参数类型为array,而我原始代码fit()的参数为DataFrame类型；
X : array-like of shape (n_samples, n_features)
    Training vector, where n_samples is the number of samples and
    n_features is the number of features.

y : array-like of shape (n_samples, n_output)             or (n_samples,), default=None
    Target relative to X for classification or regression;
    None for unsupervised learning.

• 修改后的代码，运行无误；这里将参数通过np.array转为array格式。