[R] column of a list

Gabor Csardi csardi at rmki.kfki.hu
Tue Jan 24 14:38:48 CET 2006


> lapply(a, "[[", "s")
$"2006-01-23"
[1]  7 12 12 11  4

$"2006-01-24"
[1]  3  8  8  9 12

This is what you need?

G.

On Tue, Jan 24, 2006 at 02:21:18PM +0100, Thomas Steiner wrote:
> I have a list of (same type) lists. I want to retrieve the same
> entries of all my objects in the outer list.
> eg:
> a<-list("2006-01-23"=list(r=5,s=c(7,12,12,11,4)),
> "2006-01-24"=list(r=6,s=c(3,8,8,9,12)))
> a[][["s"]]
> 
> gives NULL, but I am looking for all the s-vectors in order to plot
> and compare them (e changes to f in a day).
> Thomas
> 
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-- 
Csardi Gabor <csardi at rmki.kfki.hu>    MTA RMKI, ELTE TTK




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