wfu {fpc}R Documentation

Weight function (for Mahalabobis distances)

Description

Function of the elements of md, which is 1 for arguments smaller than ca, 0 for arguments larger than ca2 and linear (default: continuous) in between.

Thought for use in fixmahal.

Usage

wfu(md, ca, ca2, a1 = 1/(ca - ca2), a0 = -a1 * ca2)

Arguments

md vector of positive numericals.
ca positive numerical.
ca2 positive numerical.
a1 numerical. Slope.
a0 numerical. Intercept.

Value

A vector of numericals between 0 and 1.

Author(s)

Christian Hennig chrish@stats.ucl.ac.uk http://www.homepages.ucl.ac.uk/~ucakche/

See Also

fixmahal

Examples

  md <- seq(0,10,by=0.1)
  wfu(md,ca=5,ca2=8)

[Package fpc version 1.2-3 Index]