Displaying 1 result from an estimated 1 matches for "r0238690".
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1023890
2006 Apr 13
1
Subset rows over multiple columns
...alue
in righta_b.
> tail(tt)
itd_1 itd_45 righta_a righta_b
18407 R0000160 R0208470 1 0
18412 R0000160 R0238140 0 1
18417 R0000160 R0259690 1 1
18422 R0000160 R0000730 1 1
18450 R0113750 R0000160 1 1
18456 R0000160 R0238690 0 1
One thing I can envision doing is using the reshape option such that
itd_1 and itd_45 would be in the "long" format. This would cause for
itd_1 and itd_45 to be stacked in a single column as well as righta_a
and righta_b and then I could then use tapply and get what I n...