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不太明白题目的意思,我是菜鸟,题目是考虑一西班牙女性,tuition=950 bytest=58, incomehi=0等等,要求划出dist与ed的图,可是把这些参数输入后,根本就显示不出来图。 twoway (lfit y1 dist if dist >=0& dist <=10& hispanic ==1& female ==1& tuition ==950& bytest ==58& inc> omehi ==0& ownhome ==0 &dadcoll==1& momcoll ==1 &cue80 ==7.1& stwmfg80 ==10.06) (qfit y3 dist if dist > >=0& dist <=10& hispanic ==1& female ==1& tuition ==950& bytest ==58& incomehi ==0& ownhome ==0 &dadco> ll==1& momcoll ==1 &cue80 ==7.1& stwmfg80 ==10.06)(note: regress could not fit model)要怎么写命令呀?这是怎么一回事呀,是我命令写错了吗?
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