clear use gender edit clear edit insheet using stata2.txt edit edit edit clear use gender edit desc gender' desc gender des gender describe edit edit sum I1 tab I1 tab I1 , nolabel tab I4 tab I4 , nolabel gen weight = I2 edit edit tab weight recode weight (997=.) (998=.) tab weight label variable "体重" label variable "体重 " label variable weight "体重 " tab weight]' tab weight sum weight' sum weight sum weight , detail gen height = I1 - 100 drop height gen height = I1 edit tab height recode height (997=.) edit des edit tab A1 tab A1, nolabel gen female =1 if A1 ==2 edit replace female = 0 if A1 ==1 edit edit tab femlae tab female sum A1 sum weight sum weight , detail tweight tab weight des gen worksatis = G53 tab worksatis tab G53 recode worksatis (99=.) tab worksatis sum worksatis ci weight ci weight , level(99) help ci ttest weight = 65 ttest ttest height = 170 bysort bysort female : sum weight ss des tab RYA2 bysort RYA2 : sum weight sum RYA2 , detail tab RYA2 gen agef = 1 if RYA2 < 34 edit replace agef = 2 if RYA2 >= 34 replace agef = 3 if RYA2 > 49 edit tab agef bysort agef : sum weight bysort female agef : sum weight bysort agef female : sum weight bysort female agef : ttest weight = 50 bysort female agef : ttest weight = 50 if female == 0 bysort female agef : ttest weight = 50 if agef == 1 bysort agef female : ttest weight = 60 , level(99) bysort female agef : ttest weight = 50 if agef == 1 , level(99) tab agef label define aagef 1 "年轻" 2 "中年" 3 "老年" label values agef aagef tab agef tab agef , nolabel --------------------------------------------------------- 天书 --

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