Re: [R] Putting all elementes of the list in an enviorment of a function

From: Prof Brian Ripley <ripley_at_stats.ox.ac.uk>
Date: Tue 02 Aug 2005 - 19:25:21 EST

On Tue, 2 Aug 2005, Ales Ziberna wrote:

> Thank you!
>
> However, this does not do exacty what I want. I would like somehow to modify
> only the function second.

What happened when you tried my suggestion as

second <- function(l, c) with(l, a + b + c)

? It does work for me.

> BTW, I used "list" only to create a "list", it is not one of my functions.

You used it as a variable within second()!

> Thanks again,
> Ales Ziberna
>
> ----- Original Message ----- From: "Prof Brian Ripley"
> <ripley@stats.ox.ac.uk>
> To: "Ales Ziberna" <ales.ziberna@guest.arnes.si>
> Cc: "R-help" <r-help@stat.math.ethz.ch>
> Sent: Tuesday, August 02, 2005 10:35 AM
> Subject: Re: [R] Putting all elementes of the list in an enviorment of a
> function
>
>
>> ?with will help you.
>>
>> I would avoid using 'list' as a function name, as it will confuse people
>> and might confuse R too.
>>
>> On Tue, 2 Aug 2005, [iso-8859-2] Alea }iberna wrote:
>>
>>> Hello!
>>>
>>> I have two functions.
>>>
>>> The first one prepares the arguments for the second one. What is the best
>>> way to put all resoults of the first one into the second one? I tried
>>> attach, however the object in the "main" enviorment have a priority over
>>> the
>>> ones in list. An example is at the end.
>>>
>>> Thanks in advance for any suggestions!
>>> Ales Ziberna
>>>
>>> For example - I would like to use just "a" instead of "list$a" in fuction
>>> "second"
>>>
>>> first<-function(a,b){
>>> if(length(a)!=1) a <- a[1]
>>> if(length(b)!=1) b <- b[1]
>>> list(a=a,b=b)
>>> }
>>>
>>> second<-function(list,c){
>>> list$a + list$b + c
>>> }
>>>
>>> a<-c(2,3)
>>> b<-4:64
>>> c<-5
>>>
>>> res<-first(a,b)
>>> second(res,c)
>>
>> --
>> Brian D. Ripley, ripley@stats.ox.ac.uk
>> Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
>> University of Oxford, Tel: +44 1865 272861 (self)
>> 1 South Parks Road, +44 1865 272866 (PA)
>> Oxford OX1 3TG, UK Fax: +44 1865 272595
>>
>> ______________________________________________
>> R-help@stat.math.ethz.ch mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide!
>> http://www.R-project.org/posting-guide.html
>
>

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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Received on Tue Aug 02 19:34:42 2005

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