I'm used to run that on Matlab>> for indice=1:23,V=vector(1:indice) end that give me 23 vectors as output. Why the same command on R " for ( i in 23:0 ) { V <- vector [ 1 : i ] } " returns one only vector? How can I obtain the 23 vectors that I need ? Thank you. -- View this message in context: http://r.789695.n4.nabble.com/for-i-in-23-0-V-vector-1-i-tp4647306.html Sent from the R help mailing list archive at Nabble.com.
Quoting Rolf Turner: (1) Learn something about R; don't just hammer and hope. Read the introductory manuals and scan the FAQ. -- Bert On Wed, Oct 24, 2012 at 5:25 AM, colaiutachambers <gabriele.carrarini at gmail.com> wrote:> I'm used to run that on Matlab >>> for indice=1:23, > V=vector(1:indice) > end > that give me 23 vectors as output. > > Why the same command on R " for ( i in 23:0 ) { V <- vector [ 1 : i ] } " > returns one only vector? > How can I obtain the 23 vectors that I need ? > > Thank you. > > > > > > -- > View this message in context: http://r.789695.n4.nabble.com/for-i-in-23-0-V-vector-1-i-tp4647306.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.-- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm
Hello,
Try the following.
lapply(1:23, function(i) 1:i)
As for why yuor code doesn't work, you're assigning 24 times a value to
V, on loop exit only the last one is there. A correct way using loops
would be
V <- list()
for(i in 1:23)
V[[i]] <- 1:i
Beware that the last vector goes from 1 _down_ to 0.
And do read An Introduction to R, file R-intro.pdf in your R/doc directory.
Hope this helps,
Em 24-10-2012 13:25, colaiutachambers escreveu:> I'm used to run that on Matlab
>>> for indice=1:23,
> V=vector(1:indice)
> end
> that give me 23 vectors as output.
>
> Why the same command on R " for ( i in 23:0 )
{ V <- vector [ 1 : i ] } "> returns one only vector?
> How can I obtain the 23 vectors that I need ?
>
> Thank you.
>
>
>
>
>
> --
> View this message in context:
http://r.789695.n4.nabble.com/for-i-in-23-0-V-vector-1-i-tp4647306.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.