yes, try this:
dat <- read.table(textConnection(
"C1 C2 C3 C4 C5
A B F C Q
G H I J T
K D R S E
P L M N O"
), header = TRUE)
closeAllConnections()
dat$NewCol <- do.call(paste, c(dat[c("C3", "C4")], sep = ""))
dat
I hope it helps.
Best,
Dimitris
Shaun Grannis wrote:
Hi,
I'm trying to concatenate values from two columns in a data frame. For
example, I have the following data.frame:
C1 C2 C3 C4 C5
A B *F C* Q
G H *I J* T
K D *R S* E
P L *M N* O
I'd like to concatenate text from columns C3 and C4, to yield either a
list or vector, like so:
NewCol
FC
IJ
RS
MN
Is this feasible in R?
Thanks!
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--
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus Medical Center
Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014
______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
