[R] How can i select a set of element in a list ?
Julian TszKin Chan
cjulian at bu.edu
Wed Dec 8 23:38:52 CET 2010
How can i select a set of element in a list ?
x<-list(1,2,3,4,5)
How can I create a new list which only have the last 4 elements of x.
I can do it with a loop, but I want to avoid that. Thanks!
example :
y<-vector("list",4)
for ( i in 1:length(y) )
y[[i]] <- x[[ i + length(x) - length(y) ]]
> y
[[1]]
[1] 2
[[2]]
[1] 3
[[3]]
[1] 4
[[4]]
[1] 5
Regards,
Julian
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