Susceptible-Exposed-Infected Model

SEI_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
gamma = 1/2

parameters <- c(beta = beta, gamma = gamma)
inits <- c(S = S_0, E = E_0, I = I_0)

SEI_ode(1, inits, parameters)
#> [[1]]
#>      S      S      E 
#> -2.967 -2.033  5.000 
#>