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我正在使用该lm()函数运行多元线性回归,我想获得估计系数的协方差矩阵。我怎样才能做到这一点?
lm()
这里lme 中系数的协方差(或相关)矩阵有一个函数的答案,lme()我想知道是否可以对lm(). 谢谢!
lme()