python - sklearn : Turning off warnings

Question

当我使用 1 列 python pandas DataFrame(不是Series 对象)，我收到此警告:

/Library/Python/2.7/site-packages/sklearn/preprocessing/label.py:125:         
DataConversionWarning: A column-vector y was passed when a 1d array was 
expected. Please change the shape of y to (n_samples, ), for example using 
ravel().
y = column_or_1d(y, warn=True)

我知道我可以很容易地在我的代码中发出这个警告，但我怎样才能关闭这些警告？

Answer 1

你可以使用这个:

import warnings
from sklearn.exceptions import DataConversionWarning
warnings.filterwarnings(action='ignore', category=DataConversionWarning)