我想通过K-cross验证找到sklearn分类器的准确性。我可以在没有交叉验证的情况下正常估计准确度。但是,如何改进此代码以进行交叉验证并同时应用StandardScaler? from sklearn.datasets import load_iris
from sklearn.cross_validation import train_test_split
from sklearn.ne
有谁知道我可以如何删除下面的错误? NameError Traceback (most recent call last)
<ipython-input-31-d3625a93ead4> in <module>()
11 loo = LeaveOneOut(num_of_examples)
12 for train_index, test_index in l