Hi,
it seems a simple problem, but I can not find a clear way.
I have a list:
lst=list(m=c('a','b','c'),n=c('c','a'),l=c('a','bc'))
> lst
$m
[1] "a" "b" "c"
$n
[1] "c" "a"
$l
[1] "a" "bc"
how can I get list elements that include a given subset? for example, for given
subset {'a','c'}, the answer should be 'm' and 'n'.
thanks
Yu
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