Re: [R] hex format

From: Steve Vejcik <vejcik_at_opendatagroup.com>
Date: Fri 08 Apr 2005 - 03:03:16 EST

On Thu, 2005-04-07 at 11:06, Prof Brian Ripley wrote:
> On Thu, 7 Apr 2005, Steve Vejcik wrote:
>
> > Thanks for your advice. Unfortunately, your answers are inconsistent:
> > as.numeric("0x1AF0") returns a decimal value for a hex string. I'd like
>
> You don't understand how R works:
>
> x <- as.numeric("0x1AF0")
>
> produces an number, not its decimal representation. A number is a number
> is a number irrepsective of the the base of its character representation.
>
"as.numeric("0x1AF0") returns a decimal value for a hex string. If you prefer, substitute the word "shows" for "returns".

> > to dothe opposite-use hex notation to represent a decimal.
> > e.g.
> > x<-0x000A
> > y<-0x0001
> > x+y=0x00B
> >
> > Cheers.
> >
> > On Thu, 2005-04-07 at 08:45, Prof Brian Ripley wrote:
> >> On Thu, 7 Apr 2005, Steve Vejcik wrote:
> >>
> >>> Hello world:
> >>> Has anyone used hex notation within R to represents integers?
> >>
> >> That's a spectacularly vague question. Short answer: yes.
> >>
> >>> as.numeric("0x1AF0")
> >> [1] 6896
> >>
> >> (which BTW is system-dependent, but one person used it as you asked).
> >>
> >> PLEASE read the posting guide and try for a `smarter' question.
> >
> >



R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri Apr 08 03:10:09 2005

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