sort by the 2nd column and compare using current row to previous row?
sort v2
gen v3=1 if v2==v2[_n-1] & v1==v1[_n-1]+1
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楼主: steeds
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1434
4
[编程问题求助] 求教如果检查一个string是否在另一堆string之中 |
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已卖:2份资源 讲师 91%
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提示: 受到警告 蓝色 违反论坛规定 2014-1-15 21:35
200论坛币
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Information Asymmetry|Market Microstructure|Credit Rating Agencies
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Information Asymmetry|Market Microstructure|Credit Rating Agencies
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