Message-ID: <47C9B0CF.3070208@ebi.ac.uk>
Date: 2008-03-01T19:38:55Z
From: Wolfgang Huber
Subject: A question on getting all possible combinations
In-Reply-To: <F7460A85-1415-4E7E-81A5-5CB8D0F15447@jhsph.edu>
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,
>>