黃河泉 发表于 2018-11-3 14:53 
1. 请执行并将该贴出来之结果贴出来。2. 不需要针对每年作分析吗?只针对 stkcd 就好吗?
谢谢老师,不需要对年度进行分析,因为前20个观测值中university的数据是缺失的,因此贴上400/450的观测值
"002255" "2008-06-25" "傅东" "" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "伊恩江" "" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "葛卫东" "扬州大学" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "钱飞舟" "江苏工学院" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "陈华" "" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "张卫兵" "镇江船舶学院" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "惠建明" "" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "徐建新" "河海大学" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "瞿永康" "" "陈孝勇" "哈尔滨工业大学"
"002255" "2008-06-25" "程建明" "" "陈孝勇" "哈尔滨工业大学"
"002256" "2008-06-25" "郭健" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "王光明" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "杨学明" "" "单祥双" "厦门大学"
"002256" "2008-06-25" "杨青坡" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "吴俊峰" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "刘科" "贵州大学" "陈玮" "兰州商学院"
"002256" "2008-06-25" "陈永弟" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "王平" "厦门大学" "陈玮" "兰州商学院"
"002256" "2008-06-25" "金立新" "北京理工大学" "陈玮" "兰州商学院"
"002256" "2008-06-25" "刘浩" "北京科技大学" "刘浩" "北京科技大学"
"002256" "2008-06-25" "李化春" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "章建鑫" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "沈少玲" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "陈玮" "" "陈玮" "兰州商学院"
"002256" "2008-06-25" "鄢文彪" "" "陈玮" "兰州商学院"
"002259" "2008-07-16" "李卫东" "西南财经大学" "严明" "华东理工大学"
"002259" "2008-07-16" "韩恂" "西南交通大学,成都理工大学" "严明" "华东理工大学"
"002259" "2008-07-16" "魏建平" "上海国家会计学院" "严明" "华东理工大学"
"002259" "2008-07-16" "蒋昌华" "西南农业大学" "严明" "华东理工大学"
"002259" "2008-07-16" "许才能" "兰州大学" "严明" "华东理工大学"
"002259" "2008-07-16" "蔚献民" "四川广播电视大学" "严明" "华东理工大学"
"002259" "2008-07-16" "孙晗" "北京理工大学" "严明" "华东理工大学"
"002259" "2008-07-16" "张昌林" "西南财经大学" "严明" "华东理工大学"
"002259" "2008-07-16" "杨彬" "北京林业大学" "严明" "华东理工大学"
"002259" "2008-07-16" "江昌政" "四川大学" "严明" "华东理工大学"
"002259" "2008-07-16" "邓化民" "东北林业大学" "严明" "华东理工大学"
"002259" "2008-07-16" "董静涛" "西南财经大学" "严明" "华东理工大学"
"002259" "2008-07-16" "向中华" "四川大学" "严明" "华东理工大学"
"002259" "2008-07-16" "晏兵" "西南交通大学" "严明" "华东理工大学"
"002259" "2008-07-16" "余钢" "中山大学" "严明" "华东理工大学"
"002259" "2008-07-16" "朱宏耀" "西南财经大学" "严明" "华东理工大学"
"002266" "2008-08-06" "邵保安" "华中工学院" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "傅友爱" "" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "史国犹" "" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "郑怀勇" "" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "章焕能" "西安理工大学" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "彭建义" "" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "白福意" "" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "鲍建江" "" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "陈富卿" "" "宗佩民" "杭州商学院"
"002266" "2008-08-06" "余永清" "武汉水利电力学院" "宗佩民" "杭州商学院"