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Define starting compartment sizes for SIRS ODE Solver

Source: R/initial_compartments.R
initial_compartments.Rd

Define starting compartment sizes for SIRS ODE Solver

Usage

initial_compartments(
  S_wild_prop = 1,
  I_wild_prop = 0,
  R_wild_prop = 0,
  S_captive_prop = 1,
  I_captive_prop = 0,
  R_captive_prop = 0,
  draws = NULL,
  steady = FALSE
)

Arguments

S_wild_prop

Size of susceptible compartment in wild population (proportion)

I_wild_prop

Size of infectious compartment in wild population (proportion)

R_wild_prop

Size of recovered compartment in wild population (proportion)

S_captive_prop

Size of susceptible compartment in captive population (proportion)

I_captive_prop

Size of infectious compartment in captive population (proportion)

R_captive_prop

Size of recovered compartment in captive population (proportion)

draws

Number of iterations of simulation

steady

Logical argument to state whether these initial compartments will be used to calculate compartment sizes as steady state equilibrium (steady = TRUE), or for a projection through a specified time period (steady = FALSE; default).

Value

List of six vectors (steady == TRUE) or eight vectors (steady == FALSE), repeating starting conditions specified by user. Length of vectors are determined by draws argument. When steady == FALSE, output will contain starting values for tracking cumulative infections (I_wild_cumulative and I_captive_cumulative), both set to zero.

Details

Provides a vector of compartment sizes for wild and captive populations. This function pairs wild and captive deer populations so that transmission between populations can occur. Values (except for draws parameter) must be proportions, and must sum to one for each population.

Examples