[R] Problem of vocabulary : retrieve element of a list of a list

[jiho]

On 2007-August-31  , at 10:17 , Ptit_Bleu wrote:

>> x<-list(LETTERS[1:5], LETTERS[10:20])

not sure to have understood exactly what you meant.
if you want to search for the D in the list:
	lapply(x,charmatch,"D")
should get you started.

if you just want to know the syntax to extract an element from a list
	x[[1]][4]
will get you the "D". but I a sure you would have found out if you  
read the manual carefully.

maybe you should read an R introduction and practice on the examples  
there rather than go straight into your own data. It would take a  
week at most and is very rewarding in the long term.
An introduction in english:
	http://cran.r-project.org/doc/manuals/R-intro.pdf
A nice one in French
	http://www.cran.r-project.org/doc/contrib/Paradis-rdebuts_fr.pdf

Cheers,

JiHO
---
http://jo.irisson.free.fr/