synth cigsale retprice cigsale(1988) cigsale(1980) cigsale(1975) , trunit(`i') trperiod(1989) xperiod(1980(1)1988) matrix `resmat' = nullmat(`resmat') e(RMSPE) localnames `"`names' `"`i'"'"'
}
mat colnames `resmat'= "RMSPE"
mat rownames `resmat' = `names'
matlist `resmat', row("Treated Unit")
运行之后出现
matrix __000001 not found
求问怎么解决??
附件:
smoking.dta
(37.23 KB)


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