Analytical Gradient of the Inverse Gompertz

Analytical Gradient of the Inverse Gompertz

Usage

grad_gompertz4(y, a, b, c, d)

Arguments

y

Numeric scalar. Observed response.

a, b, c, d

Numeric scalars. Free model parameters.

Value

List with grad_theta and scalar grad_y.

See also

Other gradient-functions: grad_logistic4(), grad_logistic5(), grad_loglogistic4(), grad_loglogistic5()