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 | ...
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 appear either once or not at all, as ga...
stata的repeated time values within panel 在Stata中,"repeated time values within panel" 指的是面板数据中的重复时间值。具体来说,面板数据集通常包含每个个体的多个观察值,每个观察值都有自己的时间戳。如果在面板数据集中,某个个体在相同的时间点有多个观察值,这就意味着存在重复的时间值。例如,如果有两个...
duplicates report id year duplicates list id year duplicates tag id year, gen(isdup) edit if isdup drop isdup 对比下,看自己哪个是dup了 (stata官网提供的解决r451错误的网址:FAQ: Dealing with reports of repeated time values within panel)
要解决Stata中出现的“repeated time values within panel”错误,您可以尝试以下几种解决方法: 1. 确保面板数据集中的时间变量是按照升序排列的。您可以使用sort命令将数据集按照时间变量进行排序,确保每个面板中的时间变量是单调递增的。 2. 检查面板数据集中是否存在重复的时间值。重复的时间值可能会导致此错误。您可...
stata创建面板数据时报错repeated time values within panel如何解决 duplicates report code year duplicates list code year duplicates drop code year duplicates drop code year , force 如图所示,解决 之后,构造面板数据,成功
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。
xtset id ts 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); Alternatively, collapse to user x date level if your analysis permi...