R help - Jul 2003 - a quick Q: a function in R, equivalent to "atoi" function in C?

Hello,
   I wonder is there a function in R, which can achieve the functionality
of atoi in C, i.e., convert from a character string to a number?

I use Sys.getenv(), it returns a character string, e.g., "12", but i
need
a number, e.g., 12, to fit into a function.

thanks a lot,
yan

?as.numeric

On July 30, 2003 04:08 pm, Yan Yu wrote:
> Hello,
>    I wonder is there a function in R, which can achieve the
> functionality of atoi in C, i.e., convert from a character string to a
> number?
>
> I use Sys.getenv(), it returns a character string, e.g., "12",
but i
> need a number, e.g., 12, to fit into a function.
>
> thanks a lot,
> yan
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help

On Wed, 30 Jul 2003, Yan Yu wrote:
>    I wonder is there a function in R, which can achieve the functionality
> of atoi in C, i.e., convert from a character string to a number?
as.numeric()
> I use Sys.getenv(), it returns a character string, e.g., "12",
but i need
> a number, e.g., 12, to fit into a function.  thanks a lot,
> yan