Parameters

NameTypeDefault Value
Individual Count Integer 250
The number of individuals to create.
Initial Infection Probability Real .05
The probability that any given individual will be infected at the beginning of the model run. For example, if this value is .15, and their are 100 individuals in the model, roughly 15 of those individuals will be infected at time 0.
Min Contact Transmission Probability Real .08
The minimum probability that proximity to a single neighbor for a single period will result in transmission of infection. At the start of each model run, each individual is assigned a contact transmission probability between the minimum and maximum value. For example, if this value was .08 and the maximum value was 0.12 a given individual could have any value between those two, but the average transmission probability would be around .1. If minium and maximum values are the same, then all individuals will have the same chance of passing along infection to a given neighbor. This value must be between 0.0 and 1.0 and less than or equal to Max Contact transmission Probability.
Max Contact Transmission Probability Real .16
The maximum probability that proximity to a single neighbor for a single period will result in transmission of infection. See Min Contact Probability for more information. Must be a value between 0.0 and 1.0 and greater or equal to Min Contact Transmission Probability.
Case Mortality Rate Real .05
The current probability that death will occur for a given individual as a result of infection. Some number between 0.0 and 1.0.
Periods per Day Integer 24
Min Period Exposure Integer 15
The minimum amount of time from initial exposure to infectious asymptomatic or symptomatic state. 0 or greater.
Max Period Exposure Integer 24
Maximum time from initial exposure to infectious asymptomatic or symptomatic state. 0 or greater.
Min Period Asymptom Infection Integer 24
Maximum time spent infected without showing symptoms. 0 or greater.
Max Period Asymptom Infection Integer 48
Maximum time spent infected without showing symptoms. May be zero!
Min Period Symptom Infection Integer 24
Minimum time spent infected with obvious symptoms. 0 or greater.
Max Period Symptom Infection Integer 168
Maximum time spent infected with obvious symptoms. 1 or greater.
Movement Probability Real .5
The chance that an agent will move within a given period. May be any value between 0.0 and 1.0.

Behaviors

ActDescription
Build Epidemic Build internal state for Epidemic.
Initialize Probabilities

Agents

Individual

Attributes

NameTypeDefault Value
Status Symbol Susceptible
Exposure End Period Integer
Asymptomatic End Period Integer
Outcome Period Integer
Contact Transmission Probability Real

Behaviors

ActDescription
Initialize Location
Movement
Initialize State
Transmission
Progression
Exposure Watch for changes in Status.

Place

Attributes

NameTypeDefault Value

Behaviors

ActDescription

Projections:

NameDescriptionType
City 2-Dimensional Grid