My apologies, I misread your formula.  Here is a clearer example anyways:

w <- 1:10
N <- length(w)
a <- 1
b <- 1
k <- 1:(N-1)
w[k+1] <- w[k]*(a/(b+k))
w
 [1] 1.0000000 0.5000000 0.6666667 0.7500000 0.8000000 0.8333333 0.8571429
 [8] 0.8750000 0.8888889 0.9000000


Best,

Josh
On Fri, Feb 26, 2010 at 7:23 AM, <khazaei@ceremade.dauphine.fr> wrote:

> Hello all,
>
> I want to define a vector like w[k+1]=w[k]*a/(b+k) for k=1,...,N-1 without
> use loop. Is it posible to do in R?
>
> Regards
>
> khazaei
>
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> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Joshua Wiley
Senior in Psychology
University of California, Riverside
http://www.joshuawiley.com/

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