[R] [R-SIG-Finance] Does anybody know how to connect to KDB from within R?

Michael comtech.usa at gmail.com
Fri Sep 25 00:14:36 CEST 2009


Cool!

I've seen the following files in that folder:

Index of /q/interfaces/r/w32

	Name	Last modified	Size	Description
	Parent Directory	 	 -
	R.dll	12-Feb-2009 18:58	2.7M
	c.o	12-Feb-2009 18:58	 23K
	k.h	12-Feb-2009 18:58	3.3K
	kdbplus.R	19-Feb-2009 03:21	420
	kdbplus.dll	12-Feb-2009 18:58	 66K
	kdbplus.o	11-Feb-2009 08:30	 14K


How do I install these files to my R-system?

Thanks!



On Thu, Sep 24, 2009 at 2:54 PM, Daniel Cegielka
<daniel.cegielka at gmail.com> wrote:
> Brian G. Peterson pisze:
>> Also, you may wish to read Dirk's post and related posts on the list
>> archives here regarding POSIXct compatibility:
>>
>> http://dirk.eddelbuettel.com/blog/2009/02/03/#kdbplus_datetime_patch
>
> http://groups.google.com/group/personal-kdbplus/browse_thread/thread/f3271f5cf534c67f
>
> This patch is build in kdbplus.c (line: 470-489):
>
> https://code.kx.com/trac/browser/kx/kdb%2B/interfaces/r/kdbplus.c
>
>
>> Re: [R-SIG-Finance] Does anybody know how to connect to KDB from
> within    R?
>
> yes:
>
> run: ~/q/l32/q -p 5000
>
> R session:
>
> # dyn.load(file.path("/home/kdeplus/.../q","l64"))
> # con <-
> .Call("kx_r_open_connection",list(host="localhost",as.integer(port=5000),user=NULL))
> # execute <- function(con,query) {
>  .Call("kx_r_execute",as.integer(con),query)
>  }
> # execute(con,"s:([] name:`A`B`C; var:10 20 30)")
> # execute(con, "select from s")
>
>
> best,
> daniel cegielka
>




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