求助各位大神:想用Stata15将数据转为低版本,报错如下saveold F:\CH**LS\2015\2015\CH**LS2015r\Health_Status_and_Functioning12.dta,replace
(saving in Stata 13 format)
(FYI, saveold has options version(12) and version(11) that write files in older Stata formats)
no variables defined
r(111);
应该如何解决,谢谢!


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