no; data are mi set
Use mi reshape to perform reshape on these data. mi reshape has the same syntax as
reshape.
Perhaps you did not type reshape. In that case, the command you typed calls reshape
and it is not appropriate for use with mi data. Use mi extract or mi xeq to select
the data on which you want to run the command, which is probably m=0.
用了这个命令还是不对
no; data are mi set
Use mi tsset to set or query these data; mi tsset has the same syntax as tsset.
Perhaps you did not type tsset. Some commands call tsset to obtain information about the
settings. In that case, that command is not appropriate for running directly on mi data. Use
mi extract to select the data on which you want to run the command, which is probably m=0.
你好像不是要用mi命令吧 如果不是就先 mi unset再设置 你再mi set里 mi xtset year肯定能成功啊
如果就是要用mi，官方解释：It does not matter which style you choose because you can always use mi convert to change the style later. We typically choose wide to begin.
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