R help - Aug 2006 - Permutations with replacement

Is there a simple function or process that will create a matrix of 
permutations with replacement? 

I know that using the combinat package

###### begin R code ######
> library(combinat)
> m <- t(array(unlist(permn(3)), dim = c(3, 6)))
# we can get the permutations, for example 3!=6
# gives us
> m
     [,1] [,2] [,3]
[1,]    1    2    3
[2,]    1    3    2
[3,]    3    1    2
[4,]    3    2    1
[5,]    2    3    1
[6,]    2    1    3
###### end R code ##########

I'd like to include the "with replacement possibilities" such as 

1,1,3
1,1,2
2,3,3

and so on.  This will eventually be done on 8!=40,320 rather than the 
development version using 3! as above.

If no function exists (I've Googled on CRAN with no palpable luck), then 
perhaps this is more of a bootstrap type problem. 

Thanks for your help in advance,
Jesse Canchola










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If you also want 1,1,1 and so on, the number of these is n^n,
(n choices for each of n slots.)
In that case, you could use hcube from combinat.

David L. Reiner
Rho Trading Securities, LLC
Chicago  IL  60605

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Jesse Albert
Canchola
Sent: Friday, August 18, 2006 3:26 PM
To: r-help
Subject: [R] Permutations with replacement

Is there a simple function or process that will create a matrix of 
permutations with replacement? 

I know that using the combinat package

###### begin R code ######
> library(combinat)
> m <- t(array(unlist(permn(3)), dim = c(3, 6)))
# we can get the permutations, for example 3!=6
# gives us
> m
     [,1] [,2] [,3]
[1,]    1    2    3
[2,]    1    3    2
[3,]    3    1    2
[4,]    3    2    1
[5,]    2    3    1
[6,]    2    1    3
###### end R code ##########

I'd like to include the "with replacement possibilities" such as 

1,1,3
1,1,2
2,3,3

and so on.  This will eventually be done on 8!=40,320 rather than the 
development version using 3! as above.

If no function exists (I've Googled on CRAN with no palpable luck), then

perhaps this is more of a bootstrap type problem. 

Thanks for your help in advance,
Jesse Canchola










________________________________________________________________________
_______________________

The information contained in this e-mail is for the exclusive use of the
intended recipient(s) and may be confidential, proprietary, and/or
legally privileged.  Inadvertent disclosure of this message does not
constitute a waiver of any privilege.  If you receive this message in
error, please do not directly or indirectly use, print, copy, forward,
or disclose any part of this message.  Please also delete this e-mail
and all copies and notify the sender.  Thank you.

For alternate languages please go to http://bayerdisclaimer.bayerweb.com

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