minmaxscaler.inverse_transform
时间: 2023-09-25 18:06:08 浏览: 53
The `inverse_transform` method in the `MinMaxScaler` class is used to reverse the scaling that was applied to a dataset using the `fit_transform` method. It transforms the scaled dataset back to its original values.
Here is an example of how to use `inverse_transform`:
```python
from sklearn.preprocessing import MinMaxScaler
import numpy as np
# create a sample dataset
data = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
# create a MinMaxScaler object
scaler = MinMaxScaler()
# fit_transform the data
scaled_data = scaler.fit_transform(data)
# inverse_transform the scaled data
original_data = scaler.inverse_transform(scaled_data)
print(original_data)
```
Output:
```
[[1. 2. 3.]
[4. 5. 6.]
[7. 8. 9.]]
```
In this example, we first created a sample dataset `data` consisting of three rows and three columns. We then created a `MinMaxScaler` object and used its `fit_transform` method to scale the data. Finally, we used the `inverse_transform` method to transform the scaled data back to its original values and stored the result in `original_data`. The output shows that the `inverse_transform` method successfully transformed the scaled data back to its original values.
相关推荐
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)