[BioC] String manipulation: String to Command

[Mohammad Esad-Djou]

Hello, 

I would like to convert a String to a COMMAND:

> direkt <- "mas"
> method <- paste(direkt,"(data.raw)",sep="")
> method
[1] "mas(data.raw)"

here I want to convert stringer to instruction: 
data.exprs <- method

but "method" is a string:
> data.exprs <- method
> data.exprs 
[1] "mas(data.raw)"
> 

How can I solve this problem correctly?

Thanks,
Mohammad Esad-Djou