geoR (version 1.5-6)

pars.limits: Set limits for the parameter values

Description

The functions likfit and variofit in the package geoR

Usage

pars.limits(phi = c(lower = 0, upper = +Inf),
            sigmasq = c(lower = 0, upper = +Inf),
            nugget.rel = c(lower = 0, upper = +Inf),
            kappa = c(lower = 0, upper = +Inf),
            lambda = c(lower = -3, upper = 3),
            psiR = c(lower = 1, upper = +Inf),
            psiA = c(lower = 0, upper = 2 * pi),
            tausq.rel = nugget.rel)

Arguments

phi

a two elements vector with limits for the parameter phi. Defaults to [0, +Inf]

sigmasq

idem for sigmasq. Defaults to [0, +Inf]

nugget.rel

idem for nugget.rel. Defaults to [0, +Inf]

kappa

idem for kappa. Defaults to [0, +Inf]

lambda

idem for lambda. Defaults to [-3, +3]. Only used in likfit.

psiR

idem for psiR. Defaults to [1, +Inf]. Only used in likfit.

psiA

idem for psiA. Defaults to [0, 2 pi]. Only used in likfit.

tausq.rel

idem for tausq.rel. Defaults to [0, +Inf]

Value

• A list of a 2 elements vector with limits for each parameters

Details

Lower and upper limits for parameter values can be individually specified. For example, including the following in the function call in likfit or variofit: limits = pars.limits(phi=c(0, 10), lambda=c(-2.5, 2.5)), will change the limits for the parameters $\phi$ and $\lambda$. Default values are used if the argument limits is not provided.

Examples

pars.limits(phi=c(0,10))
pars.limits(phi=c(0,10), sigmasq=c(0, 100))