IC-class {RobAStBase}R Documentation

Influence curve

Description

Class of (partial) influence curves.

Objects from the Class

Objects can be created by calls of the form new("IC", ...). More frequently they are created via the generating function IC.

Slots

CallL2Fam:
Object of class "call": creates an object of the underlying L2-differentiable parametric family.
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!
name:
Object of class "character".
Curve:
Object of class "EuclRandVarList".
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.

Extends

Class "InfluenceCurve", directly.

Methods

CallL2Fam
signature(object = "IC"): accessor function for slot CallL2Fam.
CallL2Fam<-
signature(object = "IC"): replacement function for slot CallL2Fam.
modifyIC
signature(object = "IC"): accessor function for slot modifyIC.
checkIC
signature(IC = "IC", L2Fam = "missing"): check centering and Fisher consistency of IC assuming the L2-differentiable parametric family which can be generated via the slot CallL2Fam of IC.
checkIC
signature(IC = "IC", L2Fam = "L2ParamFamily"): check centering and Fisher consistency of IC assuming the L2-differentiable parametric family L2Fam.
evalIC
signature(IC = "IC", x = "numeric"): evaluate IC at x.
evalIC
signature(IC = "IC", x = "matrix"): evaluate IC at the rows of x.
infoPlot
signature(object = "IC"): Plot absolute and relative information of IC.
plot
signature(x = "IC", y = "missing")
show
signature(object = "IC")

Author(s)

Matthias Kohl Matthias.Kohl@stamats.de

References

Hampel et al. (1986) Robust Statistics. The Approach Based on Influence Functions. New York: Wiley.

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

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

See Also

InfluenceCurve-class, IC

Examples

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

[Package RobAStBase version 0.1.5 Index]