最最最简单的线性回归的例子

假设y=aX+b

录入X的数据，y的数据，然后作图。

from sklearn import linear_model

import matplotlib.pyplot as plt

model = linear_model.LinearRegression()

X = [[1.01], [0.49], [0.31], [1.51], [0.37], [0.73], [1.53], [0.56],

        [0.41], [0.74], [0.63], [0.6], [2.06], [1.1], [1.31]]

y = [7366, 985, 544, 9140, 493, 3011, 11413, 1814, 876, 2690, 1190, 4172, 11764, 4682, 6172]

plt.scatter(X, y)

model.fit(X, y)

plt.plot(X, model.intercept_ + model.coef_ * X, color='red', inewidth='3')

plt.show()