回归分析绘图，预测，残差分析

线性回归 lm以及一些很好用的函数web fit<- lm(weight~height,data = women) > summary(fit) Call: lm(formula = weight ~ height, data = women) Residuals: Min 1Q Median 3Q Max -1.7333 -1.1333 -0.3833 0.7417 3.1167

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