R help - May 2008 - expand.grid using a repeated vector as a parameter

Hello.


I'm trying to do this (not necessarily 0:1)  :


expand.grid ( 0:1, 0:1, 0:1, 0:1, 0:1)

etc..etc.


but I want to have control over how many 0:1 are included.


Any ideas please ?

Thankyou.


Simon Parker
Imperial College



       
---------------------------------

A Smarter Email.
	[[alternative HTML version deleted]]

?do.call

On Fri, 2 May 2008, Simon Parker wrote:
> Hello.
>
>
> I'm trying to do this (not necessarily 0:1)  :
>
>
> expand.grid ( 0:1, 0:1, 0:1, 0:1, 0:1)
>
> etc..etc.
>
>
> but I want to have control over how many 0:1 are included.
>
>
> Any ideas please ?
>
> Thankyou.
>
>
> Simon Parker
> Imperial College
>
>
>
>
> ---------------------------------
>
> A Smarter Email.
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

Try:
> tmp <- rep( list( 0:1 ), 5 )
> out <- do.call(expand.grid, tmp)
Then change the 5 to whatever you want.

Hope this helps,

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
(801) 408-8111
 
 
> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Simon Parker
> Sent: Friday, May 02, 2008 11:50 AM
> To: r-help at r-project.org
> Subject: [R] expand.grid using a repeated vector as a parameter
> 
> Hello.
> 
> 
> I'm trying to do this (not necessarily 0:1)  :
> 
> 
> expand.grid ( 0:1, 0:1, 0:1, 0:1, 0:1)
> 
> etc..etc.
> 
> 
> but I want to have control over how many 0:1 are included.
> 
> 
> Any ideas please ?
> 
> Thankyou.
> 
> 
> Simon Parker
> Imperial College
> 
> 
> 
>        
> ---------------------------------
> 
> A Smarter Email.
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>