R help - Feb 2013 - expand.grid on contents of a list

Hello!
I have a list of variable length. One example is:
X=vector("list",3)
X[[1]]=1:2
X[[2]]=1:2
X[[3]]=1:2
How could I run expand.grid on the elements of X so that the results would
be the same as expand.grid(1:2,1:2,1:2)?

Thank you!
Dimitri

-- 
Dimitri Liakhovitski
gfk.com <http://marketfusionanalytics.com/>

	[[alternative HTML version deleted]]

Oops, it was easier than I thought:
expand.grid(X)
Dimitri

On Fri, Feb 1, 2013 at 8:48 AM, Dimitri Liakhovitski <
dimitri.liakhovitski@gmail.com> wrote:
> Hello!
> I have a list of variable length. One example is:
> X=vector("list",3)
> X[[1]]=1:2
> X[[2]]=1:2
> X[[3]]=1:2
> How could I run expand.grid on the elements of X so that the results would
> be the same as expand.grid(1:2,1:2,1:2)?
>
> Thank you!
> Dimitri
>
> --
> Dimitri Liakhovitski
> gfk.com <http://marketfusionanalytics.com/>
>
>

-- 
Dimitri Liakhovitski
gfk.com <http://marketfusionanalytics.com/>

	[[alternative HTML version deleted]]

Hi,
expand.grid(X)  
#  Var1 Var2 Var3 
#1    1    1    1 
#2    2    1    1 
#3    1    2    1 
#4    2    2    1 
#5    1    1    2 
#6    2    1    2 
#7    1    2    2 
#8    2    2    2  expand.grid(1:2,1:2,1:2) 
#  Var1 Var2 Var3 
#1    1    1    1 
#2    2    1    1 
#3    1    2    1 
#4    2    2    1 
#5    1    1    2 
#6    2    1    2 
#    1    2    2 
#8    2    2    2 
A.K.

----- Original Message -----
From: Dimitri Liakhovitski <dimitri.liakhovitski at gmail.com>
To: r-help <r-help at r-project.org>
Cc: 
Sent: Friday, February 1, 2013 8:48 AM
Subject: [R] expand.grid on contents of a list

Hello!
I have a list of variable length. One example is:
X=vector("list",3)
X[[1]]=1:2
X[[2]]=1:2
X[[3]]=1:2
How could I run expand.grid on the elements of X so that the results would
be the same as expand.grid(1:2,1:2,1:2)?

Thank you!
Dimitri

-- 
Dimitri Liakhovitski
gfk.com <http://marketfusionanalytics.com/>

??? [[alternative HTML version deleted]]

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