Pick

Pick[list,sel]
picks out those elements of list for which the corresponding element of sel is True.

Pick[list,sel,patt]
picks out those elements of list for which the corresponding element of sel matches patt.

DetailsDetails

  • sel can be a nested list of any depth.
  • Pick[list,sel,patt] picks out those for which matches patt.
  • Depending on the arrangement of elements matching patt in a nested list sel, Pick may return a ragged array.
  • The heads in list and sel do not have to be List.
  • Pick works with SparseArray objects.
Introduced in 2004
(5.1)