internal_ldehelpers_for_distrMod: Internal helper functions for treating LDEstimators in package distrMod

Description

These functions are used internally by function LDEstimator in package ``distrMod''.

Usage

.prepend(prep, list0, dots = NULL)
.LDMatch(x.0, loc.est.0, disp.est.0, loc.fctal.0, disp.fctal.0,
         ParamFamily.0, loc.est.ctrl.0 = NULL, loc.fctal.ctrl.0=NULL,
         disp.est.ctrl.0 = NULL, disp.fctal.ctrl.0=NULL,
         q.lo.0 =0, q.up.0=Inf, log.q.0 =TRUE, ..., vdbg = FALSE)

Value

.prepend: a named list to be used as arguments in a call.
.LDMatch: a named vector with components "shape" and "scale".

Arguments

prep: a vector; to be prepended as first argument in a function; named x internally.
list0: a list to be appended to prep; names are taken over.
dots: an optional list (or NULL) to be appended to prep and list0; names are taken over.
x.0: a vector (numeric) at which to evaluate the LD-match
loc.est.0: a function expecting x (a numeric vector) as first argument; location estimator.
disp.est.0: a function expecting x (a numeric vector) as first argument; dispersion estimator; may only take non-negative values.
loc.fctal.0: a function expecting a distribution object as first argument; location functional.
disp.fctal.0: a function expecting a distribution object as first argument; dispersion functional; may only take non-negative values.
loc.est.ctrl.0: a list (or NULL); optional additional arguments for the location estimator.
disp.est.ctrl.0: a list (or NULL); optional additional arguments for the dispersion estimator.
loc.fctal.ctrl.0: a list (or NULL); optional additional arguments for the location functional.
disp.fctal.ctrl.0: a list (or NULL); optional additional arguments for the dispersion functional.
ParamFamily: an object of class "ParamFamily". The parametric family at which to evaluate the LDEstimator; the respective (main) parameter must contain "scale" and "shape".
q.lo.0: numeric; lower bound for search intervall in shape parameter.
q.up.0: numeric; upper bound for search intervall in shape parameter.
log.q.0: logical; shall the zero search be done on log-scale?
...: further arguments to be passed to location estimator and functional and dispersion estimator and functional.
vdbg: logical; if TRUE, debugging information is shown.

Author

Peter Ruckdeschel peter.ruckdeschel@uni-oldenburg.de

Details

.prepend is used to produce the argument list for the calls to estimators and functionals. This argument list consists of prep (first argument), named x internally, the items of list0 and, if non-NULL, the items of ....