HampIC-class {RobAStBase}R Documentation

Influence curve of Hampel type

Description

Class of (partial) influence curves of Hampel (= total variation or contamination) type; used as common mother class for classes ContIC and TotalVarIC.

Objects from the Class

Objects can be created by calls of the form new("HampIC", ...).

Slots

CallL2Fam:
object of class "call": creates an object of the underlying L2-differentiable parametric family.
name:
object of class "character"
Curve:
object of class "EuclRandVarList"
modifyIC:
Object of class "OptionalFunction": function of two arguments, which are an L2 parametric family and an optional influence curve. Returns an object of class "IC". This slot is mainly used for internal computations!
Risks:
object of class "list": list of risks; cf. RiskType-class.
Infos:
object of class "matrix" with two columns named method and message: additional informations.
stand:
object of class "matrix": standardizing matrix.
weight:
object of class "RobWeight": weight function
biastype:
object of class "BiasType": bias type (symmetric/onsided/asymmetric)
normtype:
object of class "NormType": norm type (Euclidean, information/self-standardized)
lowerCase:
object of class "OptionalNumeric": optional constant for lower case solution.
neighborRadius:
object of class "numeric": radius of the corresponding (unconditional) contamination neighborhood.

Extends

Class "IC", directly.
Class "InfluenceCurve", by class "IC".

Methods

stand
signature(object = "HampIC"): accessor function for slot stand.
weight
signature(object = "HampIC"): accessor function for slot weight.
biastype
signature(object = "HampIC"): accessor function for slot biastype.
normtype
signature(object = "HampIC"): accessor function for slot normtype.
lowerCase
signature(object = "HampIC"): accessor function for slot lowerCase.
neighborRadius
signature(object = "HampIC"): accessor function for slot neighborRadius.
neighborRadius<-
signature(object = "HampIC"): replacement function for slot neighborRadius.

Author(s)

Peter Ruckdeschel Peter.Ruckdeschel@itwm.fraunhofer.de

References

Rieder, H. (1994) Robust Asymptotic Statistics. New York: Springer.

Kohl, M. (2005) Numerical Hampributions to the Asymptotic Theory of Robustness. Bayreuth: Dissertation.

See Also

IC-class

Examples

IC1 <- new("HampIC")
plot(IC1)

[Package RobAStBase version 0.1.5 Index]