gk (version 0.6.0)

Qgh_log_deriv: g-and-h Q log derivative

Description

Derivative of the g-and-h log(Q) function.

Usage

Qgh_log_deriv(z, A, B, g, h, c = 0.8, type)

Value

The derivative of the g-and-h Q function at p.

Arguments

z

A vector of normal quantiles.

A

Vector of A (location) parameters.

B

Vector of B (scale) parameters. Must be positive.

g

Vector of g parameters.

h

Vector of k parameters. Must be positive.

c

Vector of c parameters. Often fixed at 0.8 which is the default.

type

Can be "generalised" (default) or "tukey".