
variable cn is str3 in master but double 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);
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楼主: 七七鱼7
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[面板数据求助] Stata求助!!!请各位大神帮忙看看 |
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学前班 90%
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