| Stkcd | Sdebt | Ldebt | DMAT | Indcd | MTB | Q | Cash | Lev | ROA | LargestHolderRate | Size | year |
2 | 4.78E+09 | 1.02E+09 | 0.21432323 | K70 | 1.917641 | 1.317989 | 0.20281 | 0.549243 | 0.053583 | 0.1119 | 22.829328 | 2003 |
2 | 6.28E+09 | 2.95E+09 | 0.46886281 | K70 | 1.89696 | 1.297813 | 0.498428 | 0.594163 | 0.05875 | 0.1289 | 23.080438 | 2004 |
2 | 1.09E+10 | 2.55E+09 | 0.23494121 | K70 | 1.869755 | 1.315271 | 0.299181 | 0.609809 | 0.065178 | 0.1181 | 23.466324 | 2005 |
2 | 2.19E+10 | 9.62E+09 | 0.4394318 | K70 | 3.967497 | 1.900205 | 0.490917 | 0.649418 | 0.047589 | 0.1454 | 23.813962 | 2006 |
和下边这个
| year | Stkcd | csrscore | M | C | T | I |
2010 | 1 | 22.49 | 5.63 | 12.43 | 4.43 | |
2011 | 1 | 51.9 | 15.47 | 24.47 | 10.22 | 1.74 |
2012 | 1 | 60.7352 | 19.1 | 28.59 | 7.941 | 5.1042 |
2013 | 1 | 62.0396 | 22.734 | 24.563 | 8.4926 | 6.25 |
2014 | 1 | 70.59059 | 22.51758 | 30.91553 | 10.102796 | 7.0546875 |
2015 | 1 | 68.24938 | 22.26563 | 26.54297 | 11.940789 | 7.5 |
2016 | 1 | 68.43853 | 22.73438 | 27.94922 | 11.348684 | 6.40625 |
2017 | 1 | 71.87096 | 20.23438 | 27.91922 | 12.348684 | 11.368684 |
merge 1:1 Stkcd year时出现
use"C:\Users\11617\Desktop\CSR最新数据\CSR\09-19RKS面板数据.dta"
. merge 1:1 Stkcd year using
invalid file specification
r(198);
end of do-file
想问一下这个是怎么回事
(ps:第一个表格后边有点长，有一列是year)
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