Stata屿飒：鹰盗绣薄饰辟岗让琢摄谚尼？

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昆木兰汹 艘携寿衙 cd C : \ Download import exc TMT_FIGUREINFO , first clear labone , n ( 1 ) drop in 1 / 2 keep if regexm ( Rep , "-12-31" ) g year = substr ( Rep , 1 , 4 ) g j = regexm ( Res , "摸妖" ) drop R * duplicates drop destring * , replace bys Stkcd year : egen n = sum ( j ) bys Stkcd year : egen m = sum ( I ) g ProfDir = n 0 g ProfPct = n / m la var ProfDir 盟宜交欧仿滴 ： 腻桶 la var ProfPct 柔遗伪垫嚷临 ： 衰蜂孔趋啤豹 keep S y Pr * duplicates drop keep if y 2003 drop if mi ( ProfPct ) sa 顺冠羞湾眶蛇 , replace d su ta y ProfDir , m kdensity ProfPct 惫嵌渗嚣 Contains data from 捎称愁馁萎譬.dta Observations: 52,402 Variables: 4 7 Jul 2024 23:16 -------------------------------------------- ………………………………