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tomatoiscoding/index.r

Created October 13, 2016 14:52
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vector intersect and return index
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index.r
a <- c(1:10)
b <- c(1,3,5,11,12,13,14)
c <- intersect(a, b)
index.a <- match(c, a) # [1] 1 3 5
index.b <- match(c, b) # [1] 1 2 3
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