CheckInput {CompRandFld}R Documentation

Checking Input

Description

Subroutine called by the fitting procedures. The procedure controls the the validity of the input inserted by the users.

Usage

CheckInput(coordx, coordy, coordt, corrmodel, data, distance,
           fcall, fixed, grid, likelihood, margins, maxdist,
           maxtime, model, numblock, optimizer, param, replicates,
           start, taper, tapsep, threshold, type, varest, vartype,
           weighted)

Arguments

coordx

A numeric (d x 2)-matrix (where d is the number of points) assigning 2-dimensions of coordinates or a numeric vector assigning 1-dimension of coordinates.

coordy

A numeric vector assigning 1-dimension of coordinates; coordy is interpreted only if coordx is a numeric vector otherwise it will be ignored.

coordt

A numeric vector assigning 1-dimension of temporal coordinates.

corrmodel

String; the name of a correlation model, for the description see FitComposite.

data

A numeric vector or a (n x d)-matrix or (d x d x n)-matrix of observations.

distance

String; the name of the spatial distance. The default is Eucl, the euclidean distance. See the Section Details.

fcall

String; Fitting to call the fitting procedure and simulation to call the simulation.

fixed

A named list giving the values of the parameters that will be considered as known values. The listed parameters for a given correlation function will be not estimated, i.e. if list(nugget=0) the nugget effect is ignored.

grid

Logical; if FALSE (the default) the data are interpreted as a vector or a (n x d)-matrix, instead if TRUE then (d x d x n)-matrix is considered.

likelihood

String; the configuration of the composite likelihood. Marginal is the default.

margins

String; the type of the marginal distribution of the max-stable field.

maxdist

Numeric; an optional positive value indicating the maximum spatial distance considered in the composite-likelihood computation.

maxtime

Numeric; an optional positive value indicating the maximum temporal lag separation in the composite-likelihood.

model

String; the density associated to the likelihood objects. Gaussian is the default.

numblock

Numeric; the number of observation of the underlying randfom field (only for max-stable simulations). See RFsim.

optimizer

String; the optimization algorithm (see optim for details). 'Nelder-Mead' is the default.

param

A numeric vector of parameters, needed only in simulation. See RFsim.

replicates

Logical; if FALSE (the default) one spatial random field is considered, instead if TRUE the data are considered as iid replicates of a field.

start

A named list with the initial values of the parameters that are used by the numerical routines in maximization procedure. NULL is the default.

taper

String; the name of the tapered correlation function.

tapsep

Numeric; an optional value indicating the separabe parameter in the space time quasi taper (see Details).

threshold

Numeric; a value indicating a threshold for the binary random field.

type

String; the type of the likelihood objects. If Pairwise (the default) then the marginal composite likelihood is formed by pairwise marginal likelihoods.

varest

Logical; if TRUE the estimate' variances and standard errors are returned. FALSE is the default.

vartype

String; the type of estimation method for computing the estimate variances, see FitComposite.

weighted

Logical; if TRUE the likelihood objects are weighted. If FALSE (the default) the composite likelihood is not weighted.

Author(s)

Simone Padoan, simone.padoan@unibocconi.it, http://faculty.unibocconi.it/simonepadoan; Moreno Bevilacqua, moreno.bevilacqua@uv.cl, https://sites.google.com/a/uv.cl/moreno-bevilacqua/home.

See Also

FitComposite


[Package CompRandFld version 1.0.3-6 Index]