KNeighborsClassifier又称K最近邻，是一种经典的模式识别分类方法。sklearn库中的该分类器有以下参数：

from sklearn.neighbors import KNeighborsClassifier;

model = KNeighborsClassifier(
    n_neighbors=5, 
    weights=’uniform’, 
    algorithm=’auto’, 
    leaf_size=30, 
    p=2, 
    metric=’minkowski’, 
    metric_params=None, 
    n_jobs=None, 
    **kwargs=object);