Many thank for all your answers. it has helped me save time
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R-help@r-project.
Just to satisfy my curiosity:
> library(microbenchmark)
>
> a <- 1:10
> b <- 101:110
>
> microbenchmark(
+ m1=as.vector( rbind(a,b) ),
+ m2=c( rbind(a,b) ),
+ m3=as.vector( matrix(c(a,b), nrow=2, byrow=TRUE) ),
+ m4={x <- integer(length(a)*2); x[c(TRUE,FALSE)] <- a;
x[c(FALSE,TRUE)] <- b; x},
+ m5
On Mar 22, 2014, at 3:22 PM, Tham Tran wrote:
> Dear R users,
>
> Given two vectors x and y
> a=1 2 3
> b=4 5 6
>
> i want to combine them into a single vector z as 1 4 2 5 3 6
>
> Thanks for your help
Searching Stackoverflow for [r] interleave produced this idea fron @Arun, which
I think i
He wants a[1] b[1] a[2] b[2] a[3] b[3]
I think you can do:
x = as.vector(rbind(a, b))
On Mon, Mar 24, 2014 at 2:39 PM, Frans Marcelissen <
fransiepansiekever...@gmail.com> wrote:
> Why not simply
>
> > a<-1:3
> > b<-4:5
> > c(a,b)
> [1] 1 2 3 4 5
>
>
> 2014-03-22 23:22 GMT+01:00 Tham Tran :
>
Why not simply
> a<-1:3
> b<-4:5
> c(a,b)
[1] 1 2 3 4 5
2014-03-22 23:22 GMT+01:00 Tham Tran :
> Dear R users,
>
> Given two vectors x and y
> a=1 2 3
> b=4 5 6
>
> i want to combine them into a single vector z as 1 4 2 5 3 6
>
> Thanks for your help
>
> Tham
>
>
>
> --
> View this message in c
On 24/03/14 08:37, David Winsemius wrote:
On Mar 22, 2014, at 3:22 PM, Tham Tran wrote:
Dear R users,
Given two vectors x and y
a=1 2 3
b=4 5 6
i want to combine them into a single vector z as 1 4 2 5 3 6
One way:
c( matrix(c(a,b), nrow=2, byrow=TRUE) )
It is more perspicuous to use
On Mar 22, 2014, at 3:22 PM, Tham Tran wrote:
> Dear R users,
>
> Given two vectors x and y
> a=1 2 3
> b=4 5 6
>
> i want to combine them into a single vector z as 1 4 2 5 3 6
One way:
c( matrix(c(a,b), nrow=2, byrow=TRUE) )
Leaving in the usual footer because Nabble's interface usually o
Hi,
May be this helps:
a <- 1:3
b <- 4:6
z <- as.vector(rbind(a,b))
z
#[1] 1 4 2 5 3 6
#or
z1 <- setNames(c(a,b),rep(seq_along(a),2))
z1 <- as.vector(z1[order(names(z1))])
z1
#[1] 1 4 2 5 3 6
A.K.
Dear R users,
Given two vectors x and y
a=1 2 3
b=4 5 6
i want to combine them into a sin
Dear R users,
Given two vectors x and y
a=1 2 3
b=4 5 6
i want to combine them into a single vector z as 1 4 2 5 3 6
Thanks for your help
Tham
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Sent from the R help mailing list archive
Is position important? The vectors always have the same length? They
always have the same entry if both are not NA?
If yes, yes and yes, then
res <- ifelse( is.na(x), y, x)
does what you want. Otherwise please explain better what you want.
Gabor
On Wed, Jan 28, 2009 at 3:54 PM, patricia garcía
Hi,
Sorry, the answers are yes yes yes. And thank you for your idea it works
perfectly.
Regards
Patricia
> Date: Wed, 28 Jan 2009 16:01:11 +0100
> Subject: Re: [R] Merge two vectors into one.
> From: csa...@rmki.kfki.hu
> To: kurtney...@hotmail.com
> CC: r-help@r-proj
you could start by something like the following:
x <- c("Y", "H", NA, NA)
y <- c(NA, "H", NA, "B")
ifelse(is.na(x), y, x)
I hope it helps.
Best,
Dimitris
patricia garcía gonzález wrote:
Hi all,
I have two vectors like this:
x <- c( "Y", "H", NA, NA )
y <- c( NA, "H", NA,
Hi all,
I have two vectors like this:
x <- c( "Y", "H", NA, NA )
y <- c( NA, "H", NA, "B" )
And would like to make one vector with the common elements, and the element
available only in one of the vectors.
res <- c( "Y", "H", NA, "B" )
Thanks,
Patricia
> From:
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