You are a GENIUS !!
I don't know how to thank you !!
Thank you so much !
I really need to improve my R language (I take any advice)
If i can do something for you about MGARCH models, let me know
Thx again
Bilel
Le Aug 22, 2012 à 8:55 PM, Rui Barradas [via R] a écrit :
> Hello,
>
> I'm being lazy, but the following works.
>
> r = 3 ; set.seed(1)
> v <- matrix(c(rnorm(40)),10,4)
>
> result <- vector("list", r*ncol(v))
> ires <- 0
>
> for (j in 1:4){
> for (i in 1:r){
> x <- t(v[,j]^(i)*v[,1:4]^((r-(4-1)):r))
> #print(x)
> ires <- ires + 1
> result[[ ires ]] <- x
> }
> }
>
> result <- do.call(rbind, result)
> dim(result)
>
> Lazy because there might be a way of avoiding the loops. If this is just
> an example, is your real problem big?
>
> Hope this helps,
>
> Rui Barradas
>
> Em 22-08-2012 14:23, bilelsan escreveu:
>
> > Dear Ruser,
> > Below, the deal (you can copy paste):
> >
> > r=3 ; set.seed(1)
> > v <- matrix(c(rnorm(40)),10,4)
> > for (j in 1:4){
> > for (i in 1:r){
> > x <- t(v[,j]^(i)*v[,1:4]^((r-(4-1)):r))
> > print(x)
> > }
> > }
> >
> > How to reach to " x " " row bind " inside or outside (preferred) of the
> > loop.
> > To obtain at the end something like:
> >> x
> > matrix( , 12*4, 10)
> >
> > Any help or advice is very welcome
> > Many regards
> > Bilel
> >
> >
> >
> > --
> > View this message in context:
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> >
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