[R] hex format
vejcik at opendatagroup.com
Thu Apr 7 19:03:16 CEST 2005
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")
> >>  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.
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