piecewiselin {prabclus}R Documentation

Piecewise linear transformation for distance matrices

Description

Piecewise linear transformation for distance matrices, utility function for geco.

Usage

piecewiselin(distmatrix, maxdist=0.1*max(distmatrix))

Arguments

distmatrix

symmetric (non-negative) distance matrix.

maxdist

non-negative numeric. Larger distances are transformed to constant 1.

Details

Transforms large distances to 1, 0 to 0 and continuously linear between 0 and maxdist.

Value

A symmetrical matrix.

Author(s)

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

See Also

geco

Examples

data(waterdist)
piecewiselin(waterdist)

[Package prabclus version 2.2-2 Index]