Removing header from a matrix

You need to clarify what you have and what you want. Please use the dput() function to create a reproducible example that we can enter into R to make suggestions about. [1]

There are a couple of possible things that could be going on here, and what you have given so far is ambiguous.

[1] http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
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I have three column vectors (X1, X2, X3).?
??????? X1? X2? X3 
?????? 20?? 25? 40
?????? 100 90? 80
I want to put them as one matrix of dimention 2 by 3, ?but remove
headers(X1,X2,X3) from the matrix. I wrote
as follows

U<-cbind (X1,X2,X3)

the headers are there. I need help please. Thanks
Dereje
[[alternative HTML version deleted]]



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These are just column names, but if you want to remove them, it is easy:

X1 <- c(20, 100)
X2 <- c(25, 90)
X3 <- c(40, 80)
U <- cbind(X1, X2, X3)
U

X1 X2 X3
[1,]  20 25 40
[2,] 100 90 80

colnames(U) <- NULL
U

[,1] [,2] [,3]
[1,]   20   25   40
[2,]  100   90   80


----------------------------------------------
David L Carlson
Associate Professor of Anthropology
Texas A&M University
College Station, TX 77843-4352

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of Dereje Bacha
Sent: Sunday, October 07, 2012 10:13 PM
To: r-help at r-project.org
Subject: [R] Removing header from a matrix

I have three column vectors (X1, X2, X3).
        X1  X2  X3
       20   25  40
       100 90  80
I want to put them as one matrix of dimention 2 by 3,  but remove
headers(X1,X2,X3) from the matrix. I wrote
as follows

U<-cbind (X1,X2,X3)

the headers are there. I need help please. Thanks
Dereje
	[[alternative HTML version deleted]]

Hi,
You can also do this:
U1<-matrix(c(X1,X2,X3),ncol=3,nrow=2,byrow=FALSE)
?U1
#???? [,1] [,2] [,3]
#[1,]?? 20?? 25?? 40
#[2,]? 100?? 90?? 80
A.K.




----- Original Message -----
From: Dereje Bacha <d_bacha at yahoo.com>
To: "r-help at r-project.org" <r-help at r-project.org>
Cc: 
Sent: Sunday, October 7, 2012 11:12 PM
Subject: [R] Removing header from a matrix

I have three column vectors (X1, X2, X3).?
??????? X1? X2? X3 
?????? 20?? 25? 40
?????? 100 90? 80
I want to put them as one matrix of dimention 2 by 3, ?but remove headers(X1,X2,X3) from the matrix. I wrote
as follows

U<-cbind (X1,X2,X3)

the headers are there. I need help please. Thanks
Dereje
??? [[alternative HTML version deleted]]


______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.