Re: [R] A question on getting all possible combinations

From: Wolfgang Huber <huber_at_ebi.ac.uk>
Date: Sat, 01 Mar 2008 19:38:55 +0000

library("R.utils")
intToBin(0:63)

Best wishes
  Wolfgang



Wolfgang Huber EBI/EMBL Cambridge UK http://www.ebi.ac.uk/huber

Benilton Carvalho scripsit:

> 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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