Changelog

0.0.7.dev0

• A custom seed can now be set for Model.run() by either passing an argument or defining a parameter seed.

• Environment has a new optional argument agents to add existing agents at the creation of the environment.

• AgentList.random() and AgentList.shuffle() have a new optional argument generator for custom instances of random.Random.

0.0.6 (January 2021)

• A new demonstration model Segregation has been added.

• All model objects now have a unique id number of type int. Methods that take an agent or environment as an argument can now take either the instance or id of the object. The key attribute of environments has been removed.

• Extra keyword arguments to Model and Experiment are now forwarded to Model.setup().

• Model.run() now takes an optional argument steps.

• EnvDict has been replaced by EnvList, which has the same functionalities as AgentList.

• Model objects now have a property env that returns the first environment of the object.

• Revision of Network. The argument map_to_nodes has been removed from Network.add_agents(). Instead, agents can be mapped to nodes by passing an AgentList to the agents argument of Model.add_network(). Direct forwarding of attribute calls to Network.graph has been removed to avoid confusion.

• New and revised methods for Grid:

  • Agent.move_to() and Agent.move_by() can be used to move agents.

  • Grid.items() returns an iterator of position and agent tuples.

  • Grid.get_agents() returns agents in selected position or area.

  • Grid.position() returns the position coordinates for an agent.

  • Grid.positions() returns an iterator of position coordinates.

  • Grid.attribute() returns a nested list with values of agent attributes.

  • Grid.apply() returns nested list with return values of a custom function.

  • Grid.neighbors() has new arguments diagonal and distance.

• gridplot() now takes a grid of values as an input and can convert them to rgba.

• animate() now takes a model instance as an input instead of a class and parameters.

• sample() and sample_saltelli() will now return integer values for parameters if parameter ranges are given as integers. For float values, a new argument digits can be passed to round parameter values.

• The function interactive() has been removed, and is replaced by the new method Experiment.interactive().

• sobol_sensitivity() has been changed to sensitivity_sobol().

0.0.5 (December 2020)

• Experiment.run() now supports parallel processing.

• New methods DataDict.arrange_variables() and DataDict.arrange_measures(), which generate a dataframe of recorded variables or measures and varied parameters.

• Major revision of DataDict.arrange(), see new description in the documentation.

• New features for AgentList: Arithmethic operators can now be used with AttrList.

0.0.4 (November 2020)

• First major release.