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ddfeff命令使用问题 #1

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zhuangshilong opened this issue Feb 13, 2022 · 0 comments
Open

ddfeff命令使用问题 #1

zhuangshilong opened this issue Feb 13, 2022 · 0 comments

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@zhuangshilong
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杜老师您好！在使用ddfeff命令测算272个城市的绿色全要素生产率时，遇到一个很棘手问题，就是过程中显示Warning: maximum number of iterations has been reached， Warning: problem is infeasible，最后结果也不能测出所有dmu的MLPI，有很多是空着的，想请教一下可能是什么原因呢，谢谢老师！
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