论文：Evolution of the novel coronavirus from the ongoing Wuhan outbreak and modeling of its spike protein for ri…

  1. 什么是回归(Regression) 回归是基于已知样本对输入变量（自变量）和输出变量（因变量）之间关系的建模。即是，对一个样本中抽象出$n$个自变量特征，每一个特征$x_i\in\mathbb{R}$…

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