[R] List Structure and Acces to data

Berend Hasselman bhh at xs4all.nl
Tue Jul 23 15:47:26 CEST 2013


On 23-07-2013, at 13:22, "Eric TRAVAGLINI" <Eric.TRAVAGLINI at 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]] 
> 

Have a look in the "An Introduction to R" section 6.1 "Lists".

Berend



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