| rle {base} | R Documentation |
Compute the lengths and values of runs of equal values in a vector – or the reverse operation.
rle(x)
inverse.rle(x, ...)
## S3 method for class 'rle'
print(x, digits = getOption("digits"), prefix = "", ...)
x |
a vector (atomic, not a list) for |
... |
further arguments; ignored here. |
digits |
number of significant digits for printing, see
|
prefix |
character string, prepended to each printed line. |
‘vector’ is used in the sense of is.vector.
Missing values are regarded as unequal to the previous value, even if that is also missing.
inverse.rle() is the inverse function of rle(),
reconstructing x from the runs.
rle() returns an object of class "rle" which is a list
with components:
lengths |
an integer vector containing the length of each run. |
values |
a vector of the same length as |
inverse.rle() returns an atomic vector.
x <- rev(rep(6:10, 1:5))
rle(x)
## lengths [1:5] 5 4 3 2 1
## values [1:5] 10 9 8 7 6
z <- c(TRUE, TRUE, FALSE, FALSE, TRUE, FALSE, TRUE, TRUE, TRUE)
rle(z)
rle(as.character(z))
print(rle(z), prefix = "..| ")
N <- integer(0)
stopifnot(x == inverse.rle(rle(x)),
identical(N, inverse.rle(rle(N))),
z == inverse.rle(rle(z)))