as.integer.hi: Hybrid Index, coercing from

In ff: Memory-Efficient Storage of Large Data on Disk and Fast Access Functions

Hybrid Index, coercing from

Description

Functions that (back-)convert an hi object to the respective subscripting information.

Usage

## S3 method for class 'hi'
as.which(x, ...)
## S3 method for class 'hi'
as.bitwhich(x, ...)
## S3 method for class 'hi'
as.bit(x, ...)
## S3 method for class 'hi'
as.integer(x, vw.convert = TRUE, ...)
## S3 method for class 'hi'
as.logical(x, maxindex = NULL, ...)
## S3 method for class 'hi'
as.character(x, names, vw.convert = TRUE, ...)
## S3 method for class 'hi'
as.matrix(x, dim = x$dim, dimorder = x$dimorder
, vw = x$vw, symmetric = x$symmetric, fixdiag = x$fixdiag, ...)

Arguments

x	an object of class hi
maxindex	the length of the subscripted object (needed for logical output)
names	the names vector of the subscripted object
dim	the dim of the subscripted object
dimorder	the dimorder of the subscripted object
vw	the virtual window vw of the subscripted object
vw.convert	vw.convert
symmetric	TRUE if the subscripted matrix is symmetric
fixdiag	TRUE if the subscripted matrix has fixdiag
...	further arguments passed

Value

as.integer.hi returns an integer vector, see as.hi.integer. as.logical.hi returns an logical vector, see as.hi.logical. as.character.hi returns a character vector, see as.hi.character. as.matrix.hi returns a matrix index, see as.hi.matrix.

Author(s)

Jens Oehlschlägel

See Also

hi, as.hi

Examples

  x <- 1:6
  names(x) <- letters[1:6]
  as.integer(as.hi(c(1:3)))
  as.logical(as.hi(c(TRUE,TRUE,TRUE,FALSE,FALSE,FALSE)))
  as.character(as.hi(letters[1:3], names=names(x)), names=names(x))
  x <- matrix(1:12, 6)
  as.matrix(as.hi(rbind(c(1,1), c(1,2), c(2,1)), dim=dim(x)), dim=dim(x))

ff documentation built on Sept. 30, 2024, 9:38 a.m.