Based solely on what you told us, this can be done using eval(parse(text=...))
cmd <- sprintf("mean(%s)", script)
eval(parse(text = cmd))
However, with more context, there may be a better solution. See, for example,
install.packages("fortunes")
library(fortunes)
fortune("parse()")
HTH,
--sundar
On Fri, Oct 16, 2009 at 11:39 AM, Javier PB
<j.perez-barbe...@macaulay.ac.uk> wrote:
>
> Dear users,
>
> I got really stuck trying to apply a function to a piece of code that I
> created using different string functions.
>
> To make things really easy, this is a wee example:
>
> x<-c(1:10)
> script<-"x, trim = 0, na.rm = FALSE" ##script created by a number of
> paste() and rep() steps
> mean(script) ##function that I want to
> apply: doesn't work
>
> Is there any way to convert the "script" class so that the function mean()
> can read it as if it were text typed in the console?
>
> Thanks and have a superb day
>
> Javier
>
>
>
> --
> View this message in context:
> http://www.nabble.com/How-can-I-run-a-function-to-a-piece-of-text--tp25930315p25930315.html
> Sent from the R help mailing list archive at Nabble.com.
>
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