[R] spliting an integer

[Peter Dalgaard]

"Anne Hertel" <ahertel at atmos.uiuc.edu> writes:

> Hi Dimitri,
> 
> You could write
> 
> > z <- trunc(x/10000)
> > z
> [1]  1 12  8
> > y <- x-trunc(x/10000)*10000
> > y
> [1] 1999 2000 1997
> 
> And there you have it.

Er, we do have integer divide and remainder operators:

> X = c(11999, 122000, 81997)
> X %% 1e4
[1] 1999 2000 1997
> X %/% 1e4
[1]  1 12  8



> Cheers,
> Anne Hertel
> 
> 
> On Thu, 20 Oct 2005 17:40:10 -0200
>  "Dimitri Szerman" <dimitrijoe at ipea.gov.br> wrote:
> >Hi there,
> >
> >>From the vector X of integers,
> >
> >X = c(11999, 122000, 81997)
> >
> >I would like to make these two vectors:
> >
> >Z= c(1999, 2000, 1997)
> >Y =c(1 , 12 , 8)
> >
> >That is, each entry of vector Z receives the four last digits of each entry of X, and Y receives "the rest".
> >
> >Any suggestions?
> >
> >Thanks in advance,
> >
> >Dimitri
> >	[[alternative HTML version deleted]]
> >
> >______________________________________________
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> 
> 
> 
> ------------------------------------------------------------
> Anne M. K. Hertel
> Grad. Student & Research Assistant
> Department of Atmospheric Sciences
> University of Illinois at Urbana-Champaign
> Annex II, room 204
> Phone: (217) 333 6296
> 
> ______________________________________________
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