急，stata小白求助

如图，本stata小白在进行面板数据分析，数据如图共117行，为什么在输入tsset id year会出现这种情况？是样本太少了吗，还是数据或者格式有问题？

重新安装stata试试
命令没有错
应该是软件安装问题
这是自带命令

补张图javascript:;

你是想设定哪个是个体变量，哪个是时间变量吧，用xtset id year这个命令，用于你这个例子就是xtset idcode year

谢谢大佬，确实是软件的问题

和睦生财 发表于 2020-4-2 16:45
你是想设定哪个是个体变量，哪个是时间变量吧，用xtset id year这个命令，用于你这个例子就是xtset idcode  ...

tsset 也是没有问题的，等价于xtset。看下面帮助里面的命令语法格式。

[TS] tsset -- Declare data to be time-series data
              (View complete PDF manual entry)
Syntax

    Declare data to be time series

        tsset timevar [, options]
       tsset panelvar timevar [, options]


    Display how data are currently tsset

        tsset
Description

    tsset manages the time-series settings of a dataset.  tsset timevar declares the data in memory to be a time series.  This allows you to use Stata's time-series operators and to analyze your data with the ts commands.  tsset panelvar timevar declares the data to be panel data, also known as cross-sectional time-series data, which contain one time series for each  value of panelvar. This allows you to also analyze your data with the xt commands without having to xtset your data.

    tsset without arguments displays how the data are currently set and sorts the data on timevar or panelvar timevar.

    tsset, clear is a rarely used programmer's command to declare that the data are no longer a time series.