python实现梯度下降法

要在Python中实现梯度下降法，你可以使用NumPy和Matplotlib库。以下是一个简单的实现示例：

import numpy as np
from matplotlib import pylab as plt

def gradient_descent(x, y, alpha, iterations):
    theta = np.zeros(x.shape<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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