If I have a vector of site abbreviations and a vector of depths in those water bodies, is there a simple way in R to combine them to make a third vector? Examples: site depth desired MU 0 MU0 MU 1 MU1 MU 2 MU2 MC 0 MC0 MC 1 MC1 MC 2 MC2 The dataset has many more lines than this.? I can see how to do this with lots of if statements, but does R have magic that can make it happen easily?? I guess this would be called concatenation.?
desired <- paste(site,depth,sep="") On Wed, Feb 17, 2021 at 11:10 PM Parkhurst, David <parkhurs at indiana.edu> wrote:> If I have a vector of site abbreviations and a vector of depths in those > water bodies, is there a simple way in R to combine them to make a third > vector? > Examples: > > site depth desired > MU 0 MU0 > MU 1 MU1 > MU 2 MU2 > MC 0 MC0 > MC 1 MC1 > MC 2 MC2 > > The dataset has many more lines than this. I can see how to do this with > lots of if statements, but does R have magic that can make it happen > easily? I guess this would be called concatenation. > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. >[[alternative HTML version deleted]]
> paste(c("A","B","C"), c(1,2,3), sep="")[1] "A1" "B2" "C3" in your example paste(site, depth, sep="") ________________________________________ From: R-help <r-help-bounces at r-project.org> on behalf of Parkhurst, David <parkhurs at indiana.edu> Sent: Wednesday, February 17, 2021 4:09 PM To: r-help at r-project.org Subject: [External] [R] Concatenation? If I have a vector of site abbreviations and a vector of depths in those water bodies, is there a simple way in R to combine them to make a third vector? Examples: site depth desired MU 0 MU0 MU 1 MU1 MU 2 MU2 MC 0 MC0 MC 1 MC1 MC 2 MC2 The dataset has many more lines than this. I can see how to do this with lots of if statements, but does R have magic that can make it happen easily? I guess this would be called concatenation. ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
How about paste?
site <-
c('MU','MU','MU','MC','MC','MC')depth
<-
c(0,1,2,0,1,2)paste(site, depth, sep="")
result:
[1] "MU0" "MU1" "MU2" "MC0"
"MC1" "MC2"
On Wed, 2021-02-17 at 21:09 +0000, Parkhurst, David
wrote:> If I have a vector of site abbreviations and a vector of depths in
> those water bodies, is there a simple way in R to combine them to
> make a third vector?Examples:
> site depth desiredMU 0 MU0MU 1
> MU1MU 2 MU2MC 0 MC0MC 1
> MC1MC 2 MC2
> The dataset has many more lines than this. I can see how to do this
> with lots of if statements, but does R have magic that can make it
> happen easily? I guess this would be called concatenation.
> ______________________________________________R-help at r-project.org
> mailing list -- To UNSUBSCRIBE and more, see
> 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.
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