[R] no partial matching of argument names after dots argument - why?

[Patrick Burns]

Circle 8.1.20 of 'The R Inferno'

http://www.burns-stat.com/pages/Tutor/R_inferno.pdf

gives the rules for argument matching.
When you see them explicitly set out there,
perhaps you will see why the matching
is as it is.

Pat

On 05/03/2012 09:24, Mark Heckmann wrote:
> I noticed that the argument names after the dots argument are not partially matched.
>
> foo<- function(one, two, ...){
>    one + two
> }
>> foo(o=1, t=2)
> [1] 3
>
> foo<- function(one, ..., two){
>     one + two
> }
>
>> foo(o=1, t=2)
> Fehler in one + two : 'two' fehlt
>
>
> Can someone explain me the reason for this behavior?
>
> THX
> Mark
>
> ––––––––––––––––––––––––––––––––––––
> Mark Heckmann
> Blog: www.markheckmann.de
> R-Blog: http://ryouready.wordpress.com
>
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-- 
Patrick Burns
pburns at pburns.seanet.com
twitter: @portfolioprobe
http://www.portfolioprobe.com/blog
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and 'The R Inferno')