Linear regression with regularization

利用MATLAB，编程实现一元线性回归。-Use MATLAB, programming linear regression.

线性回归是利用称为线性回归方程的最小二乘函数对一个或多个自变量和因变量之间关系进行建模的一种回归分析(Linear regression is a regression analysis based on the least squares function of linear regression equation, which is used to model the relationship between one or more independent variables and dep