CkInput {GeoModels}

Checking Input

Description

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

Usage

CkInput(coordx, coordy, coordt, coordx_dyn,corrmodel, data, distance, 
           fcall, fixed, grid,likelihood, maxdist, maxtime, 
            model, n,  optimizer, param, radius,
           start, taper, tapsep,  type, varest, vartype, 
           weighted,copula,X)

Arguments

coordx

A numeric (d \times 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 GeoFit.

coordx_dyn

A list of m numeric (d_t \times 2)-matrices containing dynamical (in time) spatial coordinates. Optional argument, the default is NULL

data

A numeric vector or a (n \times d)-matrix or (d \times d \times 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 \times d)-matrix, instead if TRUE then (d \times d \times n)-matrix is considered.

likelihood

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

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.

radius

Numeric; the radius of the sphere in the case of lon-lat coordinates. The default is 6371, the radius of the earth.

model

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

n

Numeric; the number of trials in a binomial random fields. Default is 1.

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 GeoSim.

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).

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 GeoFit.

weighted

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

copula

String; the type of copula. It can be "Clayton" or "Gaussian"

X

Numeric; Matrix of space-time covariates in the linear mean specification.

Details

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

Value

A list with the type of error associated with the input parameters.

Author(s)

Moreno Bevilacqua, [e-mail],https://sites.google.com/view/moreno-bevilacqua/home, Víctor Morales Oñate, [e-mail], https://sites.google.com/site/moralesonatevictor/, Christian", Caamaño-Carrillo, [e-mail],https://www.researchgate.net/profile/Christian-Caamano

See Also

GeoFit