[R] external variable by inside-function routines modifications

Henrique Dallazuanna wwwhsd at gmail.com
Thu Oct 8 19:18:53 CEST 2009


See assign, you can use '<<-' assignment:

foo <- function(var) var <<- var + 1

On Thu, Oct 8, 2009 at 2:14 PM, devol <sunduck at gmail.com> wrote:
>
> Dear all,
>
>  could you please advice whether it is possible somehow to modify an
> external (from the point of some function view) variable by some
> function-internal operators. For example
>
>> var=1
>> foo<-function(var){var=var+1}
>> foo(var)
>> var
> [1] 1
>
> but the goal is to get the var equal to 2 in this specific case.
>
> Thanks!
> --
> View this message in context: http://www.nabble.com/external-variable-by-inside-function-routines-modifications-tp25803308p25803308.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O




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