肯定大牛们帮忙
- test.sas7bdat
year | stkcd | x1 | x2 | x3 |
2000 | 1 | |||
2001 | 1 | |||
2002 | 1 | |||
2003 | 1 | 2 | 0 | 26 |
2004 | 1 | 2 | 0 | 10 |
2005 | 1 | |||
2006 | 1 | 2 | 1 | 9 |
2007 | 1 | 1 | 0 | 6 |
2008 | 1 | 11 | 0 | 6 |
2009 | 1 | |||
2010 | 1 | 5 | 0 | 6 |
2011 | 1 | 6 | 0 | 7 |
2012 | 1 | 15 | 0 | 2 |
2013 | 1 | |||
2014 | 1 | |||
2015 | 1 |
楼主: lizhewenbei
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1774
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请教大牛:如何按照趋势,填补前后缺失的数据? |
副教授 38%
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