mod.nat: Heligman-Pollard parameter coversion to natural age-specific...

In milokmilo/strandCet: Estimation of Biological Parameters from Stranded Cetaceans

Heligman-Pollard parameter coversion to natural age-specific probabilites of death.

Description

Calculates the age-specific probabilities of death using the Heligman-Pollard model.

Usage

mod.nat(theta, x)

Arguments

theta	A vector containing values for the 9 parameters of the adapted Heligman-Pollard model.
x	A vector containing the ages at which to calculate the probabilities of death.

Value

A vector of probabilities of natural death at ages.

Note

Utility function called by HP.CI.

References

Heligman, L. and Pollard, J.H. (1980). The Age Pattern of Mortality. Journal of the Institute of Actuaries 107:49–80.

See Also

HP.CI

milokmilo/strandCet documentation built on July 11, 2022, 5:57 a.m.