In the middle part of the screen, you will see what we will term the Canvas. Each agent within that population has the characteristics and behaviour specified by the corresponding agent class (here, the Person class specified above). It typically includes one or more populations of agents. The Main class provides a stage on which the agents (here, persons) play out their roles. In short, this represents the model s characterization of Personness. The Person class is an example of an Agent class specifies the behaviour and general characteristics of the stylized representation of persons in the model. This structure consists of several pieces i. This shows you the structure of the current project including the various pieces that collectively specify the model. In the upper left corner of the screen, you will see the Project window. Once you click on the link, AnyLogic will go from the Example Model screen to show the workspace for working on a model. Clicking on this link will load the specified model into AnyLogic.ΔΆ MODIFYING A SIMPLE SAMPLE MODEL 4. Click on the item on the Splash Screen that reads SIR Agent Based (We have highlighted this link in the image below, but please be advised that the details of its position might vary depending on the size of the screen, the particular position on the screen in which window it appears, etc.). Note that the names of the models are sorted alphabetically, left-to-right and top-tobottom. The screen of Example models will show in one of the windows. Under the menu item Help, Choose Example Models. If not, please undertake the following steps. If this has already appeared, you are all set. Start up AnyLogic You will now need to access a "Splash Screen that reads Welcome to AnyLogic 6. These modifications will also serve the role of familiarizing you with basics of the AnyLogic interface, and elements of the operation of that software. The exercise seeks to expose you to the above by having you modify an existing agentbased model in AnyLogic. The use of a Statechart to describe an agents behavior over time. The distinction between model structure and the particular values of the parameters used in a model, and the accompanying notion of an AnyLogic experiment (which exercises a particular model structure with a specific combination of parameter values). The distinction between a model s specification & behaviour at simulation time The idea of independently specifying both agentness (through the Agent class) and the stage on which agents will play out their behaviour (the Main class). sum, product) of the effects of the different pieces. The behaviour observed in the emergent phenomenon will be very different from the behaviour of any one of the pieces that make up the model, or any straightforward combination (e.g. The concept of emergence, in which unexpected phenomena arise from the complex interaction of many factors that are individually very simple. Please note that these steps may require slight modification for AnyLogic7. 1 MODIFYING A SIMPLE SAMPLE MODEL Rating: Basic Prerequisites: None Estimated Time Required: 1 hour This exercise will expose you to several basic concepts associated with Agent-based modeling.
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