Susceptible-Exposed-Infected-Susceptible Model — SEIS_ode • idmodelr

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 
#>