使用Stata,设置设置面板数据的两个字段,报错: .xtset pac year repeated time values within panelr(451); 可见这两个字段是有重复项了,使用下面的命令查看问题所在 .duplicates list pac year 得到如下结果,可以看出是哪一行数据出现了问题 重复项 解决方法: 查看原始数据,筛选一下问题在哪,把原始数据中的重复项...
I'm really new on Stata and I'm trying to work with a panel data. I know that, to set a panel data, one uses xtset id year, but when I try to use this command Stata returns the error "repeated time values within panel (r451)". I know that this happens because I have the sa...
面板里有重复的时间,即单个公司的时间存在重复值;可能在操作的过程中没有删除掉这些重复值。| 1 1 600028 200509 || 1 92 600028 200509 || 2 2 600028 200510 || 2 93 600028 200510 | ...
继而,我又找来用了drop相关命令,这下终于把“repeated time values within panel”的报错给消除了,命...
B|Values|Values|2|01/01/2014|0|1 As you can see, companies can have multiple values at the same period (as they are rated by 2 different agencies). The problem then arises when I usextsetto define my panel data it throws the"repeated time values within panel". I wish to cluster er...
. xtset id time I get a report of repeated time values within panel r(451); What should I do next? Answer Panel data are defined by an identifier variable and a time variable. Each combination of identifier and time should occur, at most, once. That is, any such combination might appe...
每当我输入 xtset code year 就会出现 varlist: code: string variable not allowed 到底怎么了 下面是我的数据varlist: code: string variable not allowed destring XXX, replace force 定义面板数据时,出现repeated time values within panel 是怎么回事,如何解决?谢谢大家。
Panel variable: id (strongly balanced) Time variable: ts, 01jan1960 00:00:00 to 01jan1960 00:00:02, but with gaps Delta: .001 seconds . xtset id date repeated time values within panel r(451); 或者,如果您的分析允许,可以折叠到用户x日期级别。
Q:repeated time values within panel A: duplicates drop firm year, force tsset firm year PSM gen tmp = runiform() sort tmp (以上两步对所有观测值进行随机排序) psmatch2 treat age , out(re78) logit neighbor(1) common caliper(.05) ties ...
<hr/>每当我输入 xtset code year 就会出现 varlist: code: string variable not allowed 到底如何了 下面是我的数据varlist: code: string variable not allowed destring XXX, replace force <hr/>定义面板数据时,出现repeated time values within panel 是如何回事,如何解决?谢谢大家。 tsset tf...