Message-ID: <8f19db7b-5922-eb47-f70e-9b2a58c11508@math.uni-giessen.de>
Date: 2021-02-18T08:50:22Z
From: Gerrit Eichner
Subject: Concatenation?
In-Reply-To: <560ea145-101d-132a-2129-c9a3e73b662e@math.uni-giessen.de>
[I forgot to keep it on the list.]
-------- Weitergeleitete Nachricht --------
Betreff: Re: [R] Concatenation?
Datum: Wed, 17 Feb 2021 22:14:13 +0100
Von: Gerrit Eichner <gerrit.eichner at math.uni-giessen.de>
Organisation: JLU Gie?en
An: Parkhurst, David <parkhurs at indiana.edu>
Hi David,
checkout, e. g., base-R's
paste0(site, depth)
or, if stored as columns of a matrix or data frame X, e.g.,
apply(X, 1, paste0)
or, e.g., tidyr's
unite.
Hth -- Gerrit
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Am 17.02.2021 um 22:09 schrieb Parkhurst, David:
> 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.
>
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>