//将年、月、日三个变量粘衬一个日期变量
gen date = mdy(month,day,year)
//从日期变量提取月份
gen month = month(date)
//将年、月、日三个变量粘衬一个日期变量
gen date = mdy(month,day,year)
//从日期变量提取月份
gen month = month(date)
本文标题:Stata--时间变量处理
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