[R] define a list with names as variables
Martin Maechler
maechler at stat.math.ethz.ch
Fri Aug 4 17:51:12 CEST 2017
>>>>> Giovanni Gherdovich <g.gherdovich at gmail.com>
>>>>> on Fri, 4 Aug 2017 12:36:49 +0200 writes:
> Hello Thomas, Ulrik,
> thanks for your suggestions.
There's also the
setNames(<obj>, names)
which is a trivial wrapper to achieve this.
I had provided it for R (in package 'stats') just to help people
to write more nicely readable code:
Your function f() below then becomes a simple one-liner:
f <- function(foo, bar) setNames(list(bar), foo)
Martin Maechler
ETH Zurich and R Core
> Giovanni
> On Fri, Aug 4, 2017 at 12:13 PM, Thomas Mailund
> <thomas.mailund at gmail.com> wrote:
>> Do you mean like this?
>>
>>
>>> f <- function(foo, bar) {
>> + result <- list(bar)
>> + names(result) <- foo
>> + result
>> + }
>>
>>> (x <- f("hello", "world"))
>> $hello
>> [1] "world"
>>
>>> names(x)
>> [1] "hello"
> On Fri, Aug 4, 2017 at 12:14 PM, Ulrik Stervbo <ulrik.stervbo at gmail.com> wrote:
>> Hi Giovani,
>>
>> I would create an unnamed list and set the names after.
>>
>> Best,
>> Ulrik
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