Hybrid Index, rle-pack utilities — rlepack • bit

Basic utilities for rle packing and unpacking and apropriate methods for rev() and unique().

rlepack(x, ...)

# S3 method for class 'integer'
rlepack(x, pack = TRUE, ...)

rleunpack(x)

# S3 method for class 'rlepack'
rleunpack(x)

# S3 method for class 'rlepack'
rev(x)

# S3 method for class 'rlepack'
unique(x, incomparables = FALSE, ...)

# S3 method for class 'rlepack'
anyDuplicated(x, incomparables = FALSE, ...)

Arguments

x: in 'rlepack' an integer vector, in the other functions an object of class 'rlepack'
...: just to keep R CMD CHECK quiet (not used)
pack: FALSE to suppress packing
incomparables: just to keep R CMD CHECK quiet (not used)

Value

A list with components:

first: the first element of the packed sequence
dat: either an object of class rle() or the complete input vector x if rle-packing is not efficient
last: the last element of the packed sequence

See also

ff::hi(), intrle(), rle(), rev(), unique()

Author

Jens Oehlschlägel

Examples


  x <- rlepack(rep(0L, 10))