[R] generated list element names

[Sam Steingold]

> * jim holtman <wubygzna at tznvy.pbz> [2012-11-19 13:14:05 -0500]:
>
> How about this (if you don't like writing two lines, encapsulate it in
> a function):
>
>> x <- list(10)
>> names(x) <- paste('f', 'oo', sep = '')
>> str(x)
> List of 1
>  $ foo: num 10
>>

I am sorry, how is this different from my second snippet (except that
you use "x" and I use "z" and you use single quotes in paste and I use
double quotes)?

>
> On Mon, Nov 19, 2012 at 1:07 PM, Sam Steingold <sds at gnu.org> wrote:
>> How can I create lists with element names created on the fly?
>>
>> --8<---------------cut here---------------start------------->8---
>>> list (foo = 10)
>> $foo
>> [1] 10
>>
>>> list ("foo" = 10)
>> $foo
>> [1] 10
>>
>>> list (paste("f","oo",sep="") = 10)
>> Error: unexpected '=' in "list (paste("f","oo",sep="") ="
>> --8<---------------cut here---------------end--------------->8---
>>
>> I understand that tags in list() are not evaluated, but is there a more
>> elegant way than
>>
>> --8<---------------cut here---------------start------------->8---
>>> z <- list(10)
>>> names(z) <- paste("f","oo",sep="")
>>> z
>> $foo
>> [1] 10
>> --8<---------------cut here---------------end--------------->8---
>>
>> thanks!
>>
>> --
>> Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000
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-- 
Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000
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