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| import numpy as np | |
| import matplotlib.pyplot as plt | |
| def poly_fit(x_values, y_values, degree=60): | |
| # 使用 numpy 的 polyfit 函数进行多项式拟合 | |
| coefficients = np.polyfit(x_values, y_values, degree) | |
| # 生成拟合的多项式函数 | |
| fitted_curve = np.poly1d(coefficients) | |
| return fitted_curve(x_values) | |