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(P)ercent (Rank)s

Source: R/highlevel64.R
prank.Rd

Function prank.integer64 projects the values [min..max] via ranks [1..n] to [0..1]. qtile.integer64() is the inverse function of 'prank.integer64' and projects [0..1] to [min..max].

Usage

prank(x, ...)

# S3 method for class 'integer64'
prank(x, method = NULL, ...)

Arguments

x

a integer64 vector

...

ignored

method

NULL for automatic method selection or a suitable low-level method, see details

Value

prank returns a numeric vector of the same length as x.

Details

Function prank.integer64 is based on rank.integer64().

See also

rank.integer64() for simple ranks and qtile() for the inverse function quantiles.

Examples

x <- as.integer64(sample(c(rep(NA, 9), 1:9), 32, TRUE))
prank(x)
#>  [1] 0.07894737 0.92105263         NA 0.65789474         NA 0.92105263
#>  [7]         NA         NA         NA         NA 0.34210526 0.65789474
#> [13] 0.26315789 0.07894737 0.47368421 0.65789474 0.47368421         NA
#> [19]         NA 0.21052632 0.65789474 0.07894737 0.92105263         NA
#> [25] 0.92105263         NA 0.07894737 0.47368421         NA 0.34210526
#> [31]         NA 0.78947368

x <- x[!is.na(x)]
stopifnot(identical(x,  unname(qtile(x, probs=prank(x)))))