R help - Nov 2014 - replacing columns with same names

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.
Eliza 		 	   		  
	[[alternative HTML version deleted]]

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]

Berend