graph twoway scatter,Cscatter-brain

graph twoway (scatter weight length) (lfit weight length)
怀疑存在自相关 predict e1,r 首先计算残差 twoway scatter e1 l
* 更丰富的画图功能, 使用help graph就可以查看到 twoway (scatter
twoway lfitci mpg weight || scatter mpg weight, scheme(tufte)
scatter price length