rindex (version 0.12.1)

sort.index: Index extraction

Description

Functions to extract from an index 1) the original vecor, 2) the sorted vector, 3) the original positions (order) and 4) logical NAiness.

Usage

# S3 method for index
[(x, i, ...)
  # S3 method for index
sort(x, decreasing = FALSE, na.last = NA, ...)
  order.index(..., na.last = TRUE, decreasing = FALSE)
  # S3 method for index
is.na(x)

Arguments

x

an object of class ‘index’

i

subset information

…

one object of class ‘index’ for order.index, otherwise not to be used

decreasing

TRUE to sort decreasing (default FALSE)

na.last

FALSE to sort NAs first (default TRUE)

Value

Function [.index returns the original vector (or part of it), sort.index returns a sorted vector of values, order.index returns a vector of original integer positions and is.na.index returns a logical vector.

Details

sort.index	identical to sort of original vector, but much faster
order.index	identical to order of original vector, but much faster
[.index	index[] returns original vector, subsetting works identical to susetting original vector [ (via NextMethod)
[<-.index	currently forbidden
is.na.index	identical to is.na of original vector, but much faster

See Also

index, sort, order, [