Susceptible-Exposed-Infected-Recovered-Susceptible Model with Simple Demographics

SEIRS_demographics_ode(t, x, params)

Arguments

t

The timestep over which to calculate derivatives

x

A numeric vector of compartment populations.

params

A named vector of parameter values.

Value

A vector of derivatives

Examples

##Model Input S_0 <- 989 E_0 <- 10 I_0 <- 1 R_0 <- 0 beta <- 3 gamma <- 1/2 tau <- 2 chi <- 0.5 mu <- 1/81 parameters <- c(beta = beta, gamma = gamma, chi = chi, tau = tau, mu = mu) inits <- c(S = S_0, E = E_0, I = I_0, R_0 = R_0) SEIRS_demographics_ode(1, inits, parameters)
#> [[1]] #> S S E I #> -2.831198 -2.156457 2.987654 2.000000 #>