Susceptible-Infected-Recovered-Susceptible Model with Vaccination

SIRS_vaccination_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_u_0 <- 989 I_u_0 <- 1 R_u_0 <- 0 S_v_0 <- 0 I_v_0 <- 0 R_v_0 <- 0 beta <- 3 chi <- 0.5 tau <- 2 lambda <- 0.7 dt <- 1 parameters <- c(beta = beta, tau = tau, chi = chi, lambda = 0.7) inits <- c(S_u = S_u_0, I_u = I_u_0, R_u_0 = R_u_0, S_v = S_v_0, I_v = I_v_0, R_v_0 = R_v_0) SIRS_vaccination_ode(1, inits, parameters)
#> [[1]] #> S_u S_u I_u S_v S_v I_v #> -2.9969697 0.9969697 2.0000000 0.0000000 0.0000000 0.0000000 #>