Hi,
Is it possible (and how) to use a variable value to create a name of a new R
variable? I want to do something like this:
for (i in 1:3) {
newvarialbe_#i# = somedata
}
where #i# is a value stored by i. In the first loop, there will be
newvariable_1, in second newvariable_2 and so on.
Thanks in advance,
Maciek
[[alternative HTML version deleted]]
Tena koe Maciek
It is possible; e.g.:
i <- 3
assign(paste('myVar', i, sep=''), 1:5)
myVar3
[1] 1 2 3 4 5
Personally, I find it is more convenient to use a list so that instead of
myVar1, myVar2 etc I have a list object, myVar, with each element equivalent to
myVar1, myVar2 etc.
HTH ...
Peter Alspach
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of maciek kryza
> Sent: Tuesday, 14 June 2011 2:14 a.m.
> To: r-help at r-project.org
> Subject: [R] use variable value to create new variable name
>
> Hi,
> Is it possible (and how) to use a variable value to create a name of a
> new R
> variable? I want to do something like this:
>
> for (i in 1:3) {
> newvarialbe_#i# = somedata
> }
>
> where #i# is a value stored by i. In the first loop, there will be
> newvariable_1, in second newvariable_2 and so on.
> Thanks in advance,
> Maciek
>
> [[alternative HTML version deleted]]
>
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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.
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This is actually FAQ 7.21 (though the FAQ does not specify how to create the name in a loop). As others have mentioned, the most important part of the Answer is that it is better to use a list instead. What searching did you do before posting? Is there some way that the FAQ could be changed that would have made your searching turn up the FAQ answer? -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.snow at imail.org 801.408.8111> -----Original Message----- > From: r-help-bounces at r-project.org [mailto:r-help-bounces at r- > project.org] On Behalf Of maciek kryza > Sent: Monday, June 13, 2011 8:14 AM > To: r-help at r-project.org > Subject: [R] use variable value to create new variable name > > Hi, > Is it possible (and how) to use a variable value to create a name of a > new R > variable? I want to do something like this: > > for (i in 1:3) { > newvarialbe_#i# = somedata > } > > where #i# is a value stored by i. In the first loop, there will be > newvariable_1, in second newvariable_2 and so on. > Thanks in advance, > Maciek > > [[alternative HTML version deleted]] > > ______________________________________________ > 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.