name 'RFECV' is not defined
时间: 2023-09-13 20:10:22 浏览: 57
The error message "name 'RFECV' is not defined" indicates that the variable or function "RFECV" has not been defined or imported in the current context.
To resolve this error, you need to make sure that you have imported the necessary libraries and modules that contain the definition of RFECV. For example, if you are using scikit-learn to perform recursive feature elimination with cross-validation (RFECV), you need to import it first:
```python
from sklearn.feature_selection import RFECV
```
Make sure you have installed scikit-learn before using it. You can install it using pip:
```
pip install scikit-learn
```
Once the library is imported, you should be able to use RFECV without encountering the "name 'RFECV' is not defined" error.
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