（轉）決定係數R2

有些講得太爛了，我來通俗的梳理一下R2.post Calculating R-squared.net 在線性迴歸的模型下，咱們能夠計算SE(line), SE(y均值)。ssr The statistic R2describes the proportion of variance in the response variable explained by the predictor variab

>>阅读原文<<