[R] All anchored series from a vector?

[Gabor Csardi]

On Wed, Dec 19, 2007 at 12:01:25AM +0100, Johannes Graumann wrote:
> Debugged version:
> lapply(1:length(myvector), function(.length) {
> myvector[1:.length]
> })
> 
> Thanks for showing the direction!
> 
> Joh

Note that this fails if length(myvector)==0. 
Good to know the corner cases.

Gabor

> 
> markleeds at verizon.net wrote:
> 
> >>From: Johannes Graumann <johannes_graumann at web.de>
> >>Date: 2007/12/18 Tue PM 04:40:37 CST
> >>To: r-help at stat.math.ethz.ch
> >>Subject: [R] All anchored series from a vector?
> > 
> > lapply(1:length(myvector) function(.length) {
> > c(myvector[1}:myvector[.length])
> > })
> > 
> > but test it because i didn't.
> > 
> > 
> > 
> >>Hi all,
> >>
> >>What may be a smart, efficient way to get the following result:
> >>
> >>myvector <- c("A","B","C","D","E")
> >>myseries <- miracle(myvector)
> >>myseries
> >>[1]
> >>[[1]] "A"
> >>[2]
> >>[[1]] "A" "B"
> >>[3]
> >>[[1]] "A" "B"
> >>[4]
> >>[[1]] "A" "B" "C"
> >>[5]
> >>[[1]] "A" "B" "C" "D"
> >>[6]
> >>[[1]] "A" "B" "C" "D" "E"
> >>
> >>Thanks for any hints,
> >>
> >>Joh
> >>
> >>______________________________________________
> >>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.
> > 
> > ______________________________________________
> > 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.
> 
> ______________________________________________
> 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.

-- 
Csardi Gabor <csardi at rmki.kfki.hu>    MTA RMKI, ELTE TTK