CovRobust-class | R Documentation |
CovRobust
is a virtual base class used for deriving the concrete classes
representing different robust estimates of multivariate location and scatter. Here are implemeted the
standard methods common for all robust estimates like show
, summary
and plot
.
The derived classes can override these methods and can define new ones.
A virtual Class: No objects may be created from it.
iter
:number of iterations used to compute the estimates
crit
:value of the criterion function
wt
:weights
call
, cov
, center
,
n.obs
, mah
, method
,
singularity
, X
:from the "Cov"
class.
Class "Cov"
, directly.
signature(obj = "CovRobust")
: Will return FALSE, since this is a 'Robust' object
signature(obj = "CovRobust")
: Return the name of the particular robust method used (as a character string)
signature(object = "CovRobust")
: display the object
signature(x = "CovRobust")
: plot the object
signature(obj = "CovRobust")
: Return the object with the reweighted estimates replaced by the raw ones (only relevant for CovMcd, CovMve and CovOgk)
Valentin Todorov valentin.todorov@chello.at
Todorov V & Filzmoser P (2009), An Object Oriented Framework for Robust Multivariate Analysis. Journal of Statistical Software, 32(3), 1–47. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.18637/jss.v032.i03")}.
Cov-class
, CovMcd-class
, CovMest-class
, CovOgk-class
data(hbk)
hbk.x <- data.matrix(hbk[, 1:3])
cv <- CovMest(hbk.x) # it is not possible to create an object of
# class CovRobust, since it is a VIRTUAL class
cv
summary(cv) # summary method for class CovRobust
plot(cv) # plot method for class CovRobust
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