46
How can I subset a list based on a condition (TRUE, FALSE) in another list? Please, see my example below:
l <- list(a=c(1,2,3), b=c(4,5,6,5), c=c(3,4,5,6))
l
$a
[1] 1 2 3
$b
[1] 4 5 6 5
$c
[1] 3 4 5 6
cond <- lapply(l, function(x) length(x) > 3)
cond
$a
[1] FALSE
$b
[1] TRUE
$c
[1] TRUE
> l[cond]
Error in l[cond] : invalid subscript type 'list'