Hi,
I have an R programming problem and I havent found anything in the
documentation yet:
I have a data matrix, in which two neighbouring columns represent
replicates of the same experiment, e.g. something like this:
A A B B C C
row1 1 1 1 2 2 2
row2 1 1 1 1 1 2
I would like to test,
On 11/28/05 12:47 PM, "Georg Otto" <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have an R programming problem and I havent found anything in the
> documentation yet:
>
> I have a data matrix, in which two neighbouring columns represent
> replicates of the same experiment, e.g. something like this:
>
Hello,
Following should work.
m <- matrix(round(runif(16,0,2)),nrow=2)
colnames(m) <- c("A","A","B","B","C","C","D","D")
m2 <- m #matrix(, nrow=dim(m)[1], ncol=dim(m)[2]/2)
z <- 1
ss <- seq(1,dim(m)[2],2)
for(j in ss){
for(i in 1:dim(m)[1]){
m2[i,j] <- substring(m[i,ss[z]] == m[i,ss[z]+1],
Hallo
On 28 Nov 2005 at 18:47, Georg Otto wrote:
To: r-help@stat.math.ethz.ch
From: Georg Otto <[EMAIL PROTECTED]>
Date sent: Mon, 28 Nov 2005 18:47:38 +0100
Subject: [R] combine two columns
> Hi,
>
> I have a
,x,compare,a))
--Bill
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Georg Otto
Sent: Monday, November 28, 2005 12:48 PM
To: r-help@stat.math.ethz.ch
Subject: [R] combine two columns
Hi,
I have an R programming problem and I havent found anything in the
Try this:
> is.odd <- !array(0:1, ncol(mat))
> mat[,is.odd] == mat[,!is.odd]
A B C
row1 TRUE FALSE TRUE
row2 TRUE TRUE FALSE
On 11/28/05, Georg Otto <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have an R programming problem and I havent found anything in the
> documentation yet:
>
> I
And here is one minor variation of this:
odd <- seq(1, ncol(mat), 2)
mat[,odd] == mat[,odd+1]
On 11/29/05, Gabor Grothendieck <[EMAIL PROTECTED]> wrote:
> Try this:
>
> > is.odd <- !array(0:1, ncol(mat))
> > mat[,is.odd] == mat[,!is.odd]
>A B C
> row1 TRUE FALSE TRUE
> row2 TRUE
