R: Stationary Fitted Model Check

is.fixedfevd {extRemes} | R Documentation

## Stationary Fitted Model Check

### Description

Test if a fitted `fevd` object is stationary or not.

### Usage

    is.fixedfevd(x)

    check.constant(x)

### Arguments

`x` | A list object of class “fevd” as returned by `fevd`. For `check.constant`, this may be a formula or vector.

### Details

This function is mostly intended as an internal function, but it may be useful generally.

`check.constant` determines if a formula is given simply by ~ 1. It is used by `is.fixedfevd`.

### Value

logical of length one stating whether the fitted model is stationary (TRUE) or not (FALSE).

### Author(s)

Eric Gilleland

### See Also

`fevd`

### Examples

    z <- revd(100, loc=20, scale=0.5, shape=-0.2)
    fit <- fevd(z)
    fit

    is.fixedfevd(fit)

[Package extRemes version 2.0-8 Index]