Your data are currently wide. You are performing a reshape long. You specified i(code) and
j(year). In the current wide form, variable code should uniquely identify the observations.
Remember this picture.
使用reshape语句得到了这个结果，不知道是否有大神可以教教小白，问题出在哪里了呢，我的语句是
reshape long var, i(company) j(year)
就是给一堆company的多个数据进行reshape
谢谢！！！
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