fpc (version 2.1-8)

mahalanodisc: Mahalanobis for AWC

Description

Vector of Mahalanobis distances or their root. For use in awcoord only.

Usage

mahalanodisc(x2, mg, covg, modus="square")

Arguments

x2

numerical data matrix.

mg

mean vector.

covg

covariance matrix.

modus

"md" (roots of Mahalanobis distances) or "square" (original squared form of Mahalanobis distances).

Value

• vector of (rooted) Mahalanobis distances.

Details

The covariance matrix is inverted by use of solvecov, which can be expected to give reasonable results for singular within-class covariance matrices.

See Also

awcoord, solvecov

Examples

options(digits=3)
  x <- cbind(rnorm(50),rnorm(50))
  mahalanodisc(x,c(0,0),cov(x))
  mahalanodisc(x,c(0,0),matrix(0,ncol=2,nrow=2))