Does R have a similarly smart division? I've tried hard on:
> A/as.vector(as.matrix(ddLen)) Error in A/as.vector(as.matrix(ddLen)) : non-numeric argument to binary operator but failed... Here my A is 10x10 matrix, and ddLen is a length-10 list of single numbers. On 3/6/06, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > > The following are nearly identical to what others have already > written but just in case: > > A - c(B) > > or > > A - B[,1] > > or if B were already a vector, b, in the first place, rather than a > matrix: > > b <- 1:2 > A - b > > > > On 3/6/06, Michael <[EMAIL PROTECTED]> wrote: > > 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 > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@stat.math.ethz.ch mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > > [[alternative HTML version deleted]] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
