Susceptible-Exposed-Infected-Susceptible Model

SEIS_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 parameters <- c(beta = beta, gamma = gamma, chi = chi) inits <- c(S = S_0, E = E_0, I = I_0) SEIS_ode(1, inits, parameters)
#> [[1]] #> S S E #> -2.467 -2.033 4.500 #>