Calculate the local continuity meta-criterion from a co-ranking matrix.
Usage
LCMC(Q, K = 1:nrow(Q))
Value
A number, the local continuity meta-criterion
Arguments
Q
a co-ranking matrix
K
vector of integers describing neighborhood size
Author
Guido Kraemer
Details
The local continuity meta-criterion (Chen and Buja, 2006) is defined as
$$ LCMC = \frac{K}{1-N} +
\frac{1}{NK} \sum_{(k,l)\in U L_K} q_{kl} $$
Higher values mean a better performance of the dimensionality reduction.