[R] building a list in loop
Fred J.
phddas at yahoo.com
Sat Mar 27 17:19:20 CET 2004
--- Uwe Ligges <ligges at statistik.uni-dortmund.de>
wrote:
> Fred J. wrote:
>
> > Hello
> >
> > getdata <- function(p){
> > fname <- NULL; dl <- list()#build the sturcture
> > builddl <- function(q,s){
> > fname <<- c(fname,s) #where "s" is a string
> > dl <<- list( dl, dt2)
>
> "Fred J." alias "phddas", you are really not going
> to use <<- here,
> please read the manuals.
thats what I do every time I think of asking a Q. I
sure could use some help in pointing out which manual
since there are few and which title/or sub-title if
you know off hand.
>
>
> > }
> > list(names = fname, data = dl)
> > }
> > data <- getdata("c:\somepath")
>
> This won't work, please read the R for Windows FAQs.
>
>
> >
> >>data
> >
> > $names
> > [1] "fname"
> >
> > $data
> > $data[[1]] <--- since there is no [[1]] how can I
> > stop
>
> It's just a matter of printing the list, in one list
> elements are named,
> in the other elements are unnamed.
>
>
> > list() <--- this from happening?
>
> What are you going to stop???
>
> I guess some kind souls on this list would be happy
> to help, but you
> need to specify your problem precisely enough! In
> this case, I don't
> understand your problem, and I even do not
> understand your question.
>
> Let me cite the last line of all R-help messages:
> "PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html".
again, I would surely like to have some guide in HowTo
find the answer for a specific problem rather than get
it handed to me on a plate. that will payoff next for
next times.
many thanks
>
> Uwe Ligges
>
>
> > $data[[2]]
> > ... lists all rows and cols here
> >
> > thanks
> >
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> >
>
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>
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