CovNARobust-class {rrcovNA} | R Documentation |
Class "CovNARobust" - virtual base class for robust estimates of multivariate location and scatter for incomplete data
Description
CovNARobust
is a virtual base class used for deriving the concrete classes
representing different robust estimates of multivariate location and scatter for incomplete data. 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.
Objects from the Class
A virtual Class: No objects may be created from it.
Slots
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.
Extends
Classes "CovNA"
and "CovRobust"
, directly.
Methods
- plot
signature(x = "CovNARobust")
: plot the object- summary
signature(object = "CovNARobust")
: display additional information for the object
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. <doi:10.18637/jss.v032.i03>.
See Also
CovNA-class
, CovNAMcd-class
, CovNAOgk-class
, CovNASde-class
, , CovNASest-class
Examples
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