这种问题怎么办:i=pro does not uniquely identify the obser

春游扈圣君7 |浏览2754次
2018/10/09 11:06
这种问题怎么办:i=pro does not uniquely identify the observations; there are multiple observations with the same value of pro. Type "reshape error" for a listing of the problem observations. r(9);
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