Displaying 1 result from an estimated 1 matches for "tp25987364p25987364".
2009 Oct 21
1
re ferring to data of previous rows
...2004 1 0
2 2005 1 1
2 2006 0 1
2 2007 1 0
3 2003 1 NA
3 2004 1 1
3 2005 1 1
3 2006 0 1
3 2007 0 0
any idea how I could program that?
thanks a lot,
clion
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