R语言 正则化 regularization

R语言 正则化示例 stepAIC rm(list=ls()) data <- swiss data[,1:5] <- scale(data[,1:5]) mdl <- lm(Infant.Mortality~., data = data) # 原本一共6个变量 require(MASS) mdl_AIC <- stepAIC(mdl, direction = 'both',trace

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