[R] replacing columns with same names

Berend Hasselman bhh at xs4all.nl
Fri Nov 14 16:24:03 CET 2014

On 14-11-2014, at 16:04, eliza botto <eliza_botto at hotmail.com> wrote:

> Dear useRs,
> I have two matrices
>> dput(EB)
> structure(1:15, .Dim = c(3L, 5L), .Dimnames = list(NULL, c("A", "B", "C", "D", "E")))
>> dput(EA)
> structure(31:36, .Dim = c(3L, 2L), .Dimnames = list(NULL, c("D", "E")))
> I have two question
> 1-Generally speaking, How can I replace the columns of matrix with the other columns having same names?
> 2-Precisely, how can I replace column "D" and "E" of "EB" with "D" and "E" of "EA"?
> Thankyou very very much in advance.

How about

colnms <- c("D","E")
EB[,colnms] <-  EA[,colnms]


More information about the R-help mailing list