[R] A question on getting all possible combinations

[Benilton Carvalho]

target = c("u", "d")
apply(expand.grid(rep(list(target), 6)), 1, paste, sep="", collapse="")

b

On Mar 1, 2008, at 9:13 AM, Megh Dal wrote:

> Hi all,
>
> Suppose I have to letters  'u' and 'd'. Now I want to find all  
> combinations like that :
>
> uuuuuu
> uuuuud
> uuuudu
> .........
> ........
> dddddd
>
> This type of combination generally required for Option Pricing in  
> financial/derivative market. Here generally 'u' means: up-move and  
> 'd' means down move of price like Stock price etc.
>
> Is there any easy way in R for doing that?
>
> Regards,
>
>
> ---------------------------------
>
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