| unlist {base} | R Documentation |
Flatten Lists
Description
Given a list structure x, unlist
produces a vector which contains all the atomic components
which occur in x.
Usage
unlist(x, recursive = TRUE, use.names = TRUE)
Arguments
x |
A list. |
recursive |
logical. Should unlisting be applied to list
components of |
use.names |
logical. Should names be preserved? |
Details
If recursive=FALSE, the function will not
recurse beyond the first level items in x.
By default, unlist tries to retain the naming
information present in x.
If use.names = FALSE all naming information is dropped.
See Also
c, as.list.
Examples
unlist(options())
unlist(unlist(options(), use.names=F))# works for vectors or lists
l.ex <- list(a = list(1:5, LETTERS[1:5]), b = "Z", c = NA)
unlist(l.ex, rec = F)
unlist(l.ex, rec = T)