rlengths {jamba} | R Documentation |
lengths for recursive lists
Description
lengths for recursive lists
Usage
rlengths(x, doSum = NULL, ...)
Arguments
x |
|
doSum |
|
... |
additional parameters are ignored |
Details
This function takes a list as input, and returns the length
of each list element after running base::unlist()
.
Value
integer
value, vector, or list:
When
doSum is NULL
(default) it returns aninteger
vector with lengthlength(x)
and namesnames(x)
, whose values are the total number of elements in each item inx
after runningbase::unlist()
.When
doSum=="TRUE"
, it returns the singleinteger
length of all elements inx
.When
doSum=="FALSE"
, it returns the full structure ofx
with theinteger
length of each element.
The parameter doSum
is intended for internal use, during
recursive calls of rlengths()
to itself. When doSum is NULL
or
TRUE
, recursive calls to rlengths()
set doSum=TRUE
.
See Also
Other jam list functions:
cPaste()
,
heads()
,
jam_rapply()
,
list2df()
,
mergeAllXY()
,
mixedSorts()
,
rbindList()
,
relist_named()
,
sclass()
,
sdim()
,
uniques()
,
unnestList()
Examples
x <- list(
A=list(
A1=nameVector(1:3, letters[1:3]),
A2=list(
A1a=nameVector(4:7, letters[4:7]),
A1b=nameVector(11:14, letters[11:14]))),
B=list(B1=nameVector(1:9, letters[1:9]),
B2=nameVector(20:25, letters[20:25])));
# default lengths(x) shows length=2 for A and B
lengths(x)
# rlengths(x) shows the total length of A and B
rlengths(x)