birth_mortality_rates.m
birth_mortality_rates.m
—
Objective-C source code,
0Kb
Dateiinhalt
function [beta,mu] = birth_mortality_rates() n = 100; % max age ages = (1:n)'; % Gompertz–Makeham law of mortality alpha_ = 0.0005202; beta_ = 0.000007786; gamma_ = 0.1116; x = ages(1:n-1); mu = (beta_*exp(gamma_*x) + alpha_) .* exp(-alpha_*x - beta_/gamma_*(exp(gamma_*x) - 1)); %mu = exp(-alpha_*x - beta_/gamma_*(exp(gamma_*x) - 1)); %mu(end) = 1; x = ages(1:n); sigma_ = 6; beta = 2/(sigma_*sqrt(2*pi)).*exp(-0.5*(x-32).^2./(sigma_^2));