[R] Unordered combinations with repetition

[WRAY NICHOLAS]

You could try expand.grid -- you'd prob need to modify what's beneath

*a=c(0,1,2)*

*b=c(0,1)*

*c=c(0,1)*

*y<-list()*

*y[[1]]<-a*

*y[[2]]<-b*

*y[[3]]<-c*

*expand.grid(y)*

This code gives all combinations


On 9 June 2015 at 10:11, Thomas Chesney <Thomas.Chesney at nottingham.ac.uk>
wrote:

> Does anyone know of a function that will return all unordered combinations
> of n elements from a list with repetition?
>
> The combs function in caTools will do this without repetition:
>
> combs(1:2, 2)
>
>      [,1] [,2]
> [1,]    1    2
>
> What I'd like is:
>
> 1 1
> 1 2
> 2 2
>
> Thank you,
>
> Thomas Chesney
>
>
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