total sum of squares(tss)亦被称为 sst. ...tss(y):y_bar=np.mean(y)return np.sum((y-y_bar)*2)def calc_rss_and_ess(y):num_samples=len(y)#构造一个随机的设计矩阵(design... 20210311
ssa(sum of squares for factor a)也称为解释的变异sse(sum of squares for error)是与自变量无关的由不可控因素(例如不可控制的个体差异,随机因素,测量误差等)引起的变异sst(sum of squares for total)的分解问题。sst也称为总变异(total variation)