rkindex: Index, based on rank.

In sprof: Profiling, timing and optimisation utilities

Description

Convert x to an index in 1... maxindex

Usage

rkindex(x, maxindex = length(x), pwr = 1, ties.method = "random", id)

Arguments

x	A vector of data to covert.
maxindex	Maximum for result
pwr	See details.
ties.method	passed to rank.
id	A string to be passed as id argument. If missing, an id will be generated from the arguments.

Details

x is transformed to a rank scale, using ties.method. It is then rescaled to [0,1], and (optionally) a power transformation is applied. In visualisation terms, this is a gamma correction. The result is rescaled to 1 ... maxindex.

Value

A vector of rescaled values.

Author(s)

Günther Sawitzki <[e-mail]>

Examples

 x <- runif(7)
 x
 str(rkindex(x, maxindex=5))
 str(rkindex(x, maxindex=5, pwr=0.5))
 

sprof documentation built on May 2, 2019, 4:45 p.m.