R: The local continuity meta-criterion

LCMC {coRanking} | R Documentation

## The local continuity meta-criterion

### Description

Calculate the local continuity meta-criterion from a co-ranking matrix.

### Usage

    LCMC(Q, K = 1:nrow(Q))

### Arguments

`Q` | a co-ranking matrix
`K` | vector of integers describing neighborhood size

### Details

The local continuity meta-criterion (Chen and Buja, 2006) is defined as

LCMC = \frac{K}{1-N} + \frac{1}{NK} ∑_{(k,l)\in U L_K} q_{kl}

Higher values mean a better performance of the dimensionality reduction.

### Value

A number, the local continuity meta-criterion

### Author(s)

Guido Kraemer

[Package coRanking version 0.2.2 Index]