R: Weight function (for Mahalabobis distances)

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 c.hennig@ucl.ac.uk http://www.homepages.ucl.ac.uk/~ucakche/

### See Also

`fixmahal`

### Examples

      md <- seq(0,10,by=0.1)
      round(wfu(md,ca=5,ca2=8),digits=2)

[Package fpc version 2.1-10 Index]