rrcov: CovClassic – R documentation

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CovClassic

Classical Estimates of Multivariate Location and Scatter

Description

Computes the classical estimates of multivariate location and scatter. Returns an S4 class CovClassic with the estimated center, cov, Mahalanobis distances and weights based on these distances.

Usage

CovClassic(x, unbiased=TRUE)
    Cov(x, unbiased=TRUE)

Arguments

`x`	a matrix or data frame. As usual, rows are observations and columns are variables.
`unbiased`	whether to return the unbiased estimate of the covariance matrix. Default is `unbiased = TRUE`

Value

An object of class "CovClassic".

Author(s)

Valentin Todorov valentin.todorov@chello.at

References

Todorov V & Filzmoser P (2009), An Object Oriented Framework for Robust Multivariate Analysis. Journal of Statistical Software, 32(3), 1–47. URL http://www.jstatsoft.org/v32/i03/.

Examples

data(hbk)
hbk.x <- data.matrix(hbk[, 1:3])
cv <- CovClassic(hbk.x)
cv
summary(cv)
plot(cv)

rrcov

Scalable Robust Estimators with High Breakdown Point

v1.5-5

GPL (>= 2)

Authors

Valentin Todorov [aut, cre] (<https://orcid.org/0000-0003-4215-0245>)

Initial release

2020-07-31