lapply(a,"[[","s")
Thomas Steiner a écrit :
>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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>
>
>
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