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roweqv
2013 Jun 26
3
match rows of R
Hi all,
What would be an efficient way to match rows of a matrix to a vector?
ex:
m<-matrix(1:9, nrow=3)
m [,1] [,2] [,3]
[1,] 1 4 7
[2,] 2 5 8
[3,] 3 6 9
#################################
which(m==c(2,5,8)) # I want this to return 2
######################
Thanks,
Sachin
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