is_unlistable.Rd
A (nested) list with atomic objects in all final nodes of the list-tree is unlistable - checked with is_unlistable
.
is_unlistable(l, DF.as.list = FALSE)
a list.
logical. TRUE
treats data frames like (sub-)lists; FALSE
like atomic elements.
is_unlistable
with DF.as.list = TRUE
is defined as all(rapply(l, is.atomic))
, whereas DF.as.list = FALSE
yields checking using all(unlist(rapply2d(l, function(x) is.atomic(x) || is.list(x)), use.names = FALSE))
, assuming that data frames are lists composed of atomic elements. If l
contains data frames, the latter can be a lot faster than applying is.atomic
to every data frame column.
logical(1)
- TRUE
or FALSE
.