distrMod (version 2.5.3)

validParameter-methods: Methods for function validParameter in Package `distrMod'

Description

Methods for function validParameter in package distrMod to check whether a new parameter (e.g. "proposed" by an optimization) is valid.

Usage

validParameter(object, ...)
"validParameter"(object, param)
"validParameter"(object, param, tol=.Machine$double.eps)
"validParameter"(object, param, tol=.Machine$double.eps)
"validParameter"(object, param)
"validParameter"(object, param, tol=.Machine$double.eps)
"validParameter"(object, param, tol=.Machine$double.eps)
"validParameter"(object, param, tol=.Machine$double.eps)
"validParameter"(object, param, tol=.Machine$double.eps)

Arguments

object

an object of class ParamFamily

param

either a numeric vector or an object of class ParamFamParameter

tol

accuracy upto which the conditions have to be fulfilled

...

additional argument(s) for methods.

Value

of length 1 --- valid or not

Details

method for signature

ParamFamily

checks if all parameters are finite by is.finite if their length is between 1 and the joint length of main and nuisance parameter of object, and finally, if a call to modifyParam(object) with argument param would throw an error.

L2ScaleUnion

checks if the parameter is finite by is.finite, and if it is strictly larger than 0 (upto argument tol).

L2ScaleFamily

checks if the parameter length is 1, and otherwise uses L2ScaleUnion-method.

L2LocationFamily

checks if the parameter is finite by is.finite, if its length is 1

L2LocationScaleFamily

checks if the parameter length is 1 or 2 (e.g. if one features as nuisance parameter), and also uses L2ScaleUnion-method.

BinomFamily

checks if the parameter is finite by is.finite, if its length is 1, and if it is strictly larger than 0 and strictly smaller than 1 (upto argument tol)

PoisFamily

checks if the parameter is finite by is.finite, if its length is 1, and if it is strictly larger than 0 (upto argument tol)

L2ScaleShapeUnion

uses L2ScaleUnion-method, checks if parameter length is 1 or 2 (e.g. if one features as nuisance parameter), and if shape is strictly larger than 0 (upto argument tol)

Examples

 NS <- NormLocationScaleFamily()
 validParameter(NS, c(scale=0.1, loc=2))
 validParameter(NS, c(scale=-0.1, loc=2))
 validParameter(NS, c(scale=0, loc=2))
 validParameter(NS, c(mean=2, sd=2))