[R] converting character string to an expression

[Stephen Tucker]

I think you're looking for

parse(text=paste(letters[1:3], collapse="+"))

--- Jarrod Hadfield <j.hadfield at shef.ac.uk> wrote:

> Hi Everyone,
> 
> I would simply like to coerce a character string into an expression:  
> something like:
> 
> as.expression(paste(letters[1:3], collapse="+"))
> 
> but I can't seem to get rid of the quotes.  The only way I can get it  
> to work is using as.formula:
> 
> as.expression(as.formula(paste("~", paste(letters[1:3], collapse="+"))))
> 
> but this requires the expression to have a tilde, which it will not  
> always have.
> 
> Thanks,
> 
> Jarrod
> 
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