[R] Passing function to tapply as a string

Henrique Dallazuanna wwwhsd at gmail.com
Fri Mar 7 22:07:32 CET 2008


Or perhaps:

myfun <- function(fname, ...)match.fun(fname)(...)

On 07/03/2008, Richard.Cotton at hsl.gov.uk <Richard.Cotton at hsl.gov.uk> wrote:
> > Was wondering if it is possible to pass function name as a parameter
>
> Yes.  This isn't exactly what you wanted, but it demonstrates the
>  principle.
>
>  x = rnorm(5)
>  [1] -0.6510448  0.4591730  1.3225205  1.2314391 -0.0888139
>
>  myfun <- function(fname, x) eval(parse(text=paste(fname,"(x)",sep="")))
>  myfun('max',x)
>  [1] 1.322521
>
>  myfun('min',x)
>  [1] -0.6510448
>
>  Regards,
>  Richie.
>
>  Mathematical Sciences Unit
>  HSL
>
>
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O



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