Abstract
This chapter provides the reader with a practical introduction to agent-based modeling via the Repast Simphony Agent Based Modeling toolkit. Using examples of agent-based models from an earlier chapter, we look in detail at how to build models using the Groovy programming language, which is based on Java. We illustrate some of the ways in which a toolkit such as Repast considerably simplifies the life of the modeler by providing extensive support for agent creation, model visualization, charting of results, and multiple runs.
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Notes
- 1.
At the time of writing, the current version is 2.3.
- 2.
An alternative primitive for creating a turtle is to hatch it, since real turtles lay eggs.
- 3.
Note that for the figure here we changed the color of the patches to white, which is not reflected in the code shown in Code 3.8.
- 4.
Time in Repast is measured as a double-precision floating-point number so the values in the arguments to @ScheduledMethod have to be written as 0d and 1d rather than 0 and 1.
- 5.
The folder is named from the project name with a .rs suffix added.
References
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© 2015 Springer-Verlag London
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Barnes, D.J., Chu, D. (2015). ABMs Using Repast Simphony. In: Guide to Simulation and Modeling for Biosciences. Simulation Foundations, Methods and Applications. Springer, London. https://doi.org/10.1007/978-1-4471-6762-4_3
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DOI: https://doi.org/10.1007/978-1-4471-6762-4_3
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