我使用的是Ubuntu 14.04中的python 2.7。我用这些命令安装了scikit-learn, numpy和matplotlib:
sudo apt-get install build-essential python-dev python-numpy \
python-numpy-dev python-scipy libatlas-dev g++ python-matplotlib \
ipython
但是当我导入这些包时:
from sklearn.cross_validation import train_test_split
它返回给我这个错误:
ImportError: No module named sklearn.cross_validation
我需要做什么?
当前回答
这可能是由于sklearn.cross_validation的弃用。 请替换sklearn。使用sklearn.model_selection进行交叉验证
Ref - https://github.com/amueller/scipy_2015_sklearn_tutorial/issues/60
其他回答
确保你已经安装了Anaconda，然后使用conda创建一个virtualenv。这将确保所有导入工作正常
Python 2.7.9 |Anaconda 2.2.0 (64-bit)| (default, Mar 9 2015, 16:20:48)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
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>>> from sklearn.cross_validation import train_test_split
Cross_validation在前一段时间已被弃用，请尝试使用model_selection将其替换掉
Train_test_split是sklearn模块的一部分。因此，您可能需要从Model_selection导入模块
代码:
from sklearn.model_selection import train_test_split
sklearn。Cross_validation现在改为sklearn.model_selection
只改变
sklearn.cross_validation
to
sklearn.model_selection
我猜交叉选择已经不活跃了。我们应该用模型选择来代替。您可以从sklearn编写它来运行。导入train_test_split
这是它。
