diligentsai 发表于 2013-12-16 23:36 
“ lfit"表示”linear fit"(线性拟合），形状为直线，如果想在散点图上同时画出二次回归曲线，直接将“ l ...
areastyle.new: class member function not found
(error occurred while loading plotregionstyle.class)
我键入命令后，出现问题 求教！！！
plotregionstyle.new: class member function not found
(error occurred while loading graphstyle.class)
graphstyle: class type not found
(error occurred while loading graph_g.class)
graph_g: class type not found
(error occurred while loading twowaygraph_g.class)
twowaygraph_g.new (scatter lnwage eduyear1) (lfit lnwage eduyear): class member function not found
twoway is not a valid graph subcommand
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