if A, B and C are of matrix class: C <- cbind(x=A[, 1], n=B[, 2])
if A, B and C are of data.frame class: C <- cbind.data.frame(x=A$x, n=B$n) C <- data.frame(x=A$x, n=B$n) linda.s a écrit : >what is the difference between the two matrix B and C? > > >>B >> >> > m n >1 1 2 >2 7 8 > > >>C <- cbind(x=A[, 1], n=B[, 2]) >>C >> >> > x n >[1,] 1 2 >[2,] 3 8 > >For B, it use 1 and 2 to indicate rows while C use[1,] and [2,] > >On 3/23/06, Jacques VESLOT <[EMAIL PROTECTED]> wrote: > > >>C <- cbind(x=A[, 1], n=B[, 2]) >> >> >> >> >> > > > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
