二次回归和线性回归的拟合效果的对比.py

#演示内容：二次回归和线性回归的拟合效果的对比 """ print(__doc__) import numpy as np import matplotlib.pyplot as plt from sklearn.linear_model import LinearRegression from sklearn.preprocessing import PolynomialFeatures from matplotlib.font_manager import FontProperties font_set = FontProperties(fname=r"c:\wind