R help - Apr 2005 - restrict namespace inside functions?

Is there a way to exclude from the namespace all
variables other than function arguments and local
variables? For example, I would like the following
code
 
a = 2.0
mult <- function(x)
{
   pi = 3.14
   return(pi*a*x)
}
print(mult(10.0))

to say "a not found" rather than using a = 2.0 inside
function mult. Thanks.
 
Vivek Rao

On Friday 08 April 2005 09:50, Vivek Rao wrote:
> Is there a way to exclude from the namespace all
> variables other than function arguments and local
> variables? For example, I would like the following
> code
>
> a = 2.0
> mult <- function(x)
> {
>    pi = 3.14
>    return(pi*a*x)
> }
> print(mult(10.0))
>
> to say "a not found" rather than using a = 2.0 inside
> function mult. Thanks.
Depending on why you want to do this, it might be enough to say

environment(mult) <- new.env(parent = NULL)

HTH,

Deepayan