设观测值y→=[y1;y2;⋯;ym],y¯=1→Ty→/m是观测值y→的各分量的均值,y→^是观测值y→的估计值.TSS=‖y→−y¯1→‖22. Total sum of squares (TSS ) 亦被称为 SST.RSS=‖y→−y→^‖22. Residual sum of squares (RSS) 亦被称为 the sum of squared errors of prediction (SS...