Susceptible-Exposed-Infected-Susceptible Model with Simple Demographics

SEIS_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 beta <- 3 chi <- 0.5 gamma <- 1/2 mu <- 1/81 parameters <- c(beta = beta, gamma = gamma, chi = chi, mu = mu) inits <- c(S = S_0, E = E_0, I = I_0) SEIS_demographics_ode(1, inits, parameters)
#> [[1]] #> S S E #> -2.331198 -2.156457 4.487654 #>