Parameters

NameTypeDefault Value
City Count Integer 4
The number of citys 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 probability that proximity to a single neighbor for a single period will result in transmission of infection.
Max Contact Transmission Probability Real .16
The probability that proximity to a single neighbor for a single period will result in transmission of infection.
Case Mortality Rate Real .05
The probability that death will occur for a given individual as a result of infection.
Min Period Exposure Integer 12
Minimum time from initial exposure to infectious asymptomatic or symptomatic state. 0 or greater.
Max Period Exposure Integer 48
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 96
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 liklihood that an agent will move within a given period.
Migration Probability Real 0.1
Regional Location Count Integer
The number of regional locations to create.
Initial City Assigned Boolean false

Behaviors

ActDescription
Build Region Build the Region.

Agents

City

A simple model of epidemic dynamics. We define individual agents with different disease states. The progression of disease moves from succeptible to exposed to infectious (either symptomatic or asymptomatic) to some outcome state. Agents can transmit infection to their immediate neighbors. For some background on the general approach, see Joshua M. Epstein. "Generative Social Science". 2006. Princeton. Copyright 2009, Miles Parker. Released under Eclipse Public License. All uses should be attributed.

Attributes

NameTypeDefault Value
Individual Count Integer 300
The number of individuals to create.
Periods per Day Integer 24
Location Count Integer
The number of locations to create.
Community Infection Status Symbol No Infections

Behaviors

ActDescription
Build Epidemic Build the City.
Setup Location Setup Location Initialization. Executed once at the beginning of each model run.

Regional Location

Attributes

NameTypeDefault Value

Behaviors

ActDescription

Projections:

NameDescriptionType
Regional Map 2-Dimensional Grid