What you are doing looks like it is probably more complicated than necessary, but since I have no idea what structure you intend to create, it is hard to say.
Here is a suggestion: try this: str(my_echant_hist) It will give you a summary of the structure of that object, which should help you understand how to access its elements. The expression my_echant_hist[[1]][[2]] makes sense if my_enchant_hist is a list, and if its first element is also a list. Then you're asking for the second element within the first element. There is nothing in R syntax that I know of that gives meaning to any of these my_echant_hist[[]] my_echant_hist[[:]] my_echant_hist[[;]] so I don't know what you were trying to get. I do suggest studying documentation for syntax related to using '['. Type ?'[' or help('[') -Don -- Don MacQueen Lawrence Livermore National Laboratory 7000 East Ave., L-627 Livermore, CA 94550 925-423-1062 On 7/23/13 4:22 AM, "Eric TRAVAGLINI" <eric.travagl...@crealp.vs.ch> wrote: >Hello, > >I used some other langages as Matlab and i just began with R, and i need >help with data structure. > >Here is my code > >" >fct_echant_hist <- function ( my_echant, my_vitesse, my_hist, my_summary) >{ > list (my_echant = my_echant, > my_vitesse = my_vitesse, > my_hist = my_hist, > my_summary = my_summary)} > > >my_echant_hist <- replicate(dim(pas)[1], fct_echant_hist(0L, > 0L, > matrix(nrow=length(my_breaks),ncol=1), > matrix(nrow=6,ncol=1)), > simplify=FALSE) >" >Is it possible to acces to all data of my_vitesse ? > > >to acces to the my_vitesse of the first record i write >my_echant_hist[[1]][[2]] > >I try something like that without succes : >my_echant_hist[[]][[2]] or >my_echant_hist[[:]][[2]] or >my_echant_hist[[;]][[2]] > > >Thanks a lot > >Eric ./. > >P:S Sorry for my English ______________________________________________ R-help@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.