使用PyPlot绘制平滑线

import numpy as np
import matplotlib.pyplot as plt
from scipy.interpolate import make_interp_spline

x = np.array([1, 2, 3, 4, 5])
y = np.array([2, 4, 6, 8, 10])

# 使用make_interp_spline函数创建插值器
spl = make_interp_spline(x, y)

# 生成平滑的曲线
x_smooth = np.linspace(x.min(), x.max(), 100)
y_smooth = spl(x_smooth)

# 绘制平滑线
plt.plot(x_smooth, y_smooth)

# 绘制数据点
plt.scatter(x, y)

# 添加标题和标签
plt.title('Smooth Line Plot')
plt.xlabel('X')
plt.ylabel('Y')

plt.show()