Selecting a sublist with purrr

Question

I have this list:

mylist=list(a=1,b=2,c=3,d=4,e=5,f=6,g=7,h=8,i=9,j=10)

I want to select a sublist comprising of only "e","f" and "g" elements. Is there a function in the package purrr that would help me to do this?

Answer 1

Yes, purrr does provide a package called keep() to select only specific elements from the list. The below command solves your problem:

mylist %>% keep(names(.) == "e" | names(.) == "f" | names(.) == "g")

This would be your result:

$e
[1] 5

$f
[1] 6

$g
[1] 7