nem: Negative Eigenvalue Magnitude

In kisungyou/DAS: Distance-bAsed Statistical methods

Description

NEM == 0; data is euclidean NEM >> 0; far

Usage

nem(x)

Details

Gram matrix -1/2 JD^2J be positive semidefinite == EUclidean

Author(s)

Kisung You

References

\insertRef

pekalska_non-euclidean_2006DAS

See Also

nef

Examples

## use simple example of iris dataset 
data(iris) 
dat  = iris[,1:4]
dmat = as.matrix(stats::dist(dat))

## run the algorithm
nem(dmat)

kisungyou/DAS documentation built on Jan. 6, 2020, 7:09 a.m.