Displaying 1 result from an estimated 1 matches for "typophiliacs".
2006 Mar 06
7
is there a way to let R do smart matrix-vector operation?
Hi all,
I want to substract vector B from A's each column... how can R do that
smartly without a loop?
> A=matrix(c(2:7), 2, 3)
> A
[,1] [,2] [,3]
[1,] 2 4 6
[2,] 3 5 7
> B=matrix(c(1, 2), 2, 1)
> B
[,1]
[1,] 1
[2,] 2
> A-B
Error in A - B : non-conformable arrays
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