求用stata数据处理得到第三列那要的数据,后面值是前面值的累加，但是第一个是0

* Example generated by -dataex-. To install: ssc install dataex
clear
input float(xulie plu)
1 1    0
1 1    0
1 1    0
2 1    0
2 1    1
1 1    0
4 1    0
4 2    1
4 1    3
4 1    4
2 1    0
2 1    1
1 1    0
4 2    0
4 1    2
4 2    3
4 2    5
1 3    0
1 1    0
1 1    0
2 1    0
2 1    1
3 1    0
3 1    1  
3 1    2
6 1    0
6 1    1
6 1    2
6 1    3
6 1    4
6 1    5
7 1    0
7 1    1
7 1    2
7 1    3
7 1    4
7 1    5
7 2    6
2 1
2 1
3 2
3 1
3 1
9 1
9 1
9 2
9 1
9 2
9 2
9 1
9 1
9 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
2 1
2 3
1 1
1 1
2 3
2 4
1 1
2 2
2 1
1 2
2 1
2 1
1 1
3 1
3 1
3 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 5
1 3
1 1
1 1
1 1
1 1
5 1
5 1
5 1
5 1
5 1
1 1
1 1
1 1
2 1
2 1
end
[/CODE]

求命令代码处理，要得到第三列那种类型，第三列是我写的部分范例

请说明其规则？

黃河泉 发表于 2018-12-16 07:59
请说明其规则？

* Example generated by -dataex-. To install: ssc install dataex
clear
input int year str12 m str18 n float frequency
2003 "芦玲"    "梁晓燕" 1
2017 "刘勇"    "邓明勇" 1
2017 " 姚丽珍" "朱依君" 1
2010 "丁亚轩"  "梁涛"    1
2017 "丁亚轩"  "梁涛"    1
2006 "丁亚轩"  "罗道玉" 1
2007 "丁亭亭"  "孔庆华" 1
2008 "丁亭亭"  "孔庆华" 2
2009 "丁亭亭"  "孔庆华" 1
2013 "丁亭亭"  "孔庆华" 1
2011 "丁亭亭"  "宁光美" 1
2012 "丁亭亭"  "宁光美" 1
2011 "丁亭亭"  "王越"    1
2006 "丁亭亭"  "谢青"    2
2007 "丁亭亭"  "谢青"    1
2011 "丁亭亭"  "谢青"    2
2012 "丁亭亭"  "谢青"    2
2011 "丁亭亭"  "邹宏文" 3
2003 "丁亭亭"  "黄庆林" 1
2015 "丁从娜"  "乐超军" 1
2010 "丁伟萍"  "朱子武" 1
2011 "丁伟萍"  "朱子武" 1
2014 "丁伟萍"  "聂勇"    1
2015 "丁伟萍"  "聂勇"    1
2016 "丁伟萍"  "聂勇"    1
2010 "丁伟萍"  "谢军"    1
2011 "丁伟萍"  "谢军"    1
2012 "丁伟萍"  "谢军"    1
2014 "丁伟萍"  "谢军"    1
2015 "丁伟萍"  "谢军"    1
2016 "丁伟萍"  "谢军"    1
2004 "丁伟萍"  "钟平"    1
2005 "丁伟萍"  "钟平"    1
2006 "丁伟萍"  "钟平"    1
2007 "丁伟萍"  "钟平"    1
2008 "丁伟萍"  "钟平"    1
2012 "丁伟萍"  "钟平"    1
2013 "丁伟萍"  "钟平"    2
2013 "丁兆栋"  "吕建幕" 1
2015 "丁兆栋"  "吕建幕" 1
2013 "丁兆栋"  "李江山" 2
2014 "丁兆栋"  "李江山" 1
2015 "丁兆栋"  "李江山" 1
2008 "丁兆栋"  "牟敦潭" 1
2009 "丁兆栋"  "牟敦潭" 1
2010 "丁兆栋"  "牟敦潭" 2
2011 "丁兆栋"  "牟敦潭" 1
2012 "丁兆栋"  "牟敦潭" 2
2013 "丁兆栋"  "牟敦潭" 2
2014 "丁兆栋"  "牟敦潭" 1
2015 "丁兆栋"  "牟敦潭" 1
2016 "丁兆栋"  "牟敦潭" 1
2007 "丁兆栋"  "王晖"    1
2017 "丁兆栋"  "谭正嘉" 1
2017 "丁兆鑫"  "罗芸"    1
2017 "丁凤"     "林蓉"    1
2004 "丁剑波"  "刘守堂" 1
2005 "丁剑波"  "王吉祥" 1
2009 "丁剑辉"  "张森"    1
2007 "丁力"     "王远"    1
2010 "丁勇"     "于晓平" 1
2010 "丁勇"     "师玉春" 1
2011 "丁勇"     "师玉春" 3
2010 "丁勇"     "张学福" 1
2011 "丁勇"     "张海峰" 1
2006 "丁勇"     "朱海武" 3
2007 "丁勇"     "朱海武" 4
2009 "丁勇"     "杨力强" 1
2010 "丁勇"     "王振伟" 2
2011 "丁勇"     "王振伟" 1
2011 "丁勇"     "田海龙" 2
2008 "丁勇"     "赵雷励" 1
2009 "丁勇"     "赵雷励" 1
2011 "丁勇"     "鲍中友" 1
2014 "丁启新"  "王国蓓" 1
2015 "丁启新"  "王国蓓" 1
2016 "丁启新"  "王国蓓" 1
2017 "丁哲寅"  "刘伟"    1
2017 "丁娜"     "张宏敏" 1
2017 "丁娜"     "胡铁军" 1
1996 "丁宗保"  "胡建新" 1
1996 "丁宗保"  "龚书敏" 1
1993 "丁宗鎏"  "宗磊"    1
1993 "丁宗鎏"  "徐惠勇" 1
1994 "丁宗鎏"  "杨立平" 5
1995 "丁宗鎏"  "熊丽萍" 3
1993 "丁宗鎏"  "牟磊"    1
2009 "丁建辉"  "马波涛" 1
2005 "丁建飞"  "梁青民" 1
2005 "丁建飞"  "王玉才" 1
2011 "丁彭凯"  "冯万奇" 1
2012 "丁彭凯"  "冯万奇" 1
2013 "丁彭凯"  "冯万奇" 1
2014 "丁彭凯"  "冯万奇" 1
2015 "丁彭凯"  "冯万奇" 1
2014 "丁彭凯"  "刘海山" 1
2017 "丁彭凯"  "杨贵鹏" 1
2010 "丁志增"  "曹忠志" 1
2016 "丁志增"  "赵鉴"    1
2017 "丁志增"  "赵鉴"    1
end
[/CODE]
谢谢黄老师您的回复！我想得到一列，就是以“m”“n”一样作为一个类别计算，比如 "丁伟萍"  "谢军"，其对应产生的新的一列，2010是0，表示之前没有一起过，2011是1，因为之前2010出现了一次，2012是2，即2010和2011的累加。 也就是计算新的列，是m,n一样下每年度的值是该类别下年度的逐渐累加，frequency表示该年出现频率。再次感谢