黃河泉 发表于 2018-5-6 17:41 
请 show 出你的所有相关指令 (与错误讯息)!并确定你的目录没错?
. use "C:\Users\Lenovo\Desktop\CSV格式1\2011~2015年各省数字普惠金融指数.dta", clear
. xtset province year
panel variable: province (strongly balanced)
time variable: year, 2 to 6
delta: 1 unit
. merge province year using "C:\Users\Lenovo\Desktop\CSV格式1\城乡居民收入差距.dta", clear
(note: you are using old merge syntax; see [R] merge for new syntax)
option clear not allowed