A-linear-regression

代码说明：

  一元线性回归中，主要计算拟合优度（相关系数平方）、计算标准误差、计算F统计量、计算截距的t统计量、计算DW统计量等，以及借助回归分析程序包计算回归系数并估计检验统计量。(A linear regression, the main computing goodness-of-fit (correlation coefficient Square), calculation of standard error, calculation of F statistic, t statistic calculated intercept, calculation of DW statistic, and by means of regression analysis package to calculate the regression coefficient and the estimation of test statistics.)