在Python中读取xlxs文件做一元线性回归
时间: 2024-04-29 16:04:02 浏览: 93
要在Python中读取xlsx文件并进行一元线性回归,需要用到一些库。首先,需要安装`pandas`和`numpy`库。
1. 安装库
```python
!pip install pandas numpy
```
2. 导入库
```python
import pandas as pd
import numpy as np
from sklearn.linear_model import LinearRegression
```
3. 读取数据
```python
df = pd.read_excel('data.xlsx')
x = df['x'].values.reshape(-1, 1)
y = df['y'].values.reshape(-1, 1)
```
其中,`data.xlsx`是你的Excel文件名,`x`和`y`是你要用来进行一元线性回归的自变量和因变量。
4. 创建模型并拟合数据
```python
model = LinearRegression()
model.fit(x, y)
```
5. 输出结果
```python
print('Coefficients: \n', model.coef_)
print('Intercept: \n', model.intercept_)
```
其中,`model.coef_`和`model.intercept_`分别表示回归系数和截距。
完整代码如下:
```python
import pandas as pd
import numpy as np
from sklearn.linear_model import LinearRegression
df = pd.read_excel('data.xlsx')
x = df['x'].values.reshape(-1, 1)
y = df['y'].values.reshape(-1, 1)
model = LinearRegression()
model.fit(x, y)
print('Coefficients: \n', model.coef_)
print('Intercept: \n', model.intercept_)
```
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