mahalanodisc {fpc} | R Documentation |
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). |
Details
The covariance matrix
is inverted by use of
solvecov
, which can be expected to give
reasonable results for singular within-class covariance matrices.
Value
vector of (rooted) Mahalanobis distances.
Author(s)
Christian Hennig christian.hennig@unibo.it https://www.unibo.it/sitoweb/christian.hennig/en/
See Also
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))
[Package fpc version 2.2-12 Index]