如题,主表是A汇总表,想要合并进去的表是B股票代码与股票收益率,结果提示错误
. merge 1:1 stock using "inv-2015年股票收益率ret.dta",
variable date is str10 in master but int in using data
You could specify merge's force option to ignore this string/numeric
mismatch. The using variable would then be treated as if it contained
"".
r(106);