楼主提示如下错误,如何解决?
. malmq i_x = o_q,ort(o) period(year)
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name: malmquistlog
log: D:\Stata14\ado\personal\malmquist.log
log type: text
opened on: 15 Oct 2017, 18:28:58
<istmt>: 3499 _uniqrowmat() not found
r(3499);