string split at xth position

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Thank you Jorge!

thats working perfectly...

/johannes

Dear Johannes,

May not be the best way, but this looks like what you described:

x <- c("a1b1","a2b2","a1b2")
x

[1] "a1b1" "a2b2" "a1b2"

substr(x, 1, 2)

[1] "a1" "a2" "a1"

substr(x, 3, 4)

[1] "b1" "b2" "b2"

HTH,
Jorge.-


On Wed, Mar 13, 2013 at 7:37 PM, Johannes Radinger <> wrote:

Hi,

I have a vector of strings like:
c("a1b1","a2b2","a1b2") which I want to spilt into two parts like:
c("a1","a2","a2") and c("b1","b2,"b2"). So there is
always a first part with a+number and a second part with b+number.
Unfortunately there is no separator I could use to directly split
the vectors.. Any idea how to handle such cases?

/Johannes

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Hi,

You could use:
library(stringr)
?str_sub()
lapply(2:3,function(i) if(i==2) str_sub(x,end=i) else str_sub(x,i))
#[[1]]
#[1] "a1" "a2" "a1"

#[[2]]
#[1] "b1" "b2" "b2"
A.K.




----- Original Message -----
From: Johannes Radinger <johannesradinger at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Wednesday, March 13, 2013 4:37 AM
Subject: [R] string split at xth position

Hi,

I have a vector of strings like:
c("a1b1","a2b2","a1b2") which I want to spilt into two parts like:
c("a1","a2","a2") and c("b1","b2,"b2"). So there is
always a first part with a+number and a second part with b+number.
Unfortunately there is no separator I could use to directly split
the vectors.. Any idea how to handle such cases?

/Johannes

______________________________________________
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.