R: Set limits for the parameter values

pars.limits {geoR} | R Documentation

## 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),
                kappa2 = 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,kappa2` | idem. 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]

### 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.

### Value

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

### See Also

`likfit`, `variofit`

### Examples

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

[Package geoR version 1.7-5.2 Index]