For an agent based modelling I'm doing with mesa & mesa-geo I need a way, to select and manipulate the agents out of the model.py.
For example, if you take the Introductory Tutorial, each step you want a particular randomly picked percentage of all agents which have no money (self.wealth = 0) to receive one money.
Therefore you need to know from all agents the wealth, pick the ones with wealth zero, pick randomly an amount of them and set wealth = 1. But is there a way, to do this out of the model.py?
For my understanding, you can only get a list of the agents by model.grid.agents, but here you can't see there attributes and you can't change the attributes.
At the end I found a solution. The keyword is object oriented programing.
Here is a question which answers this one quite good.
At the end I realised my problem with adding functions for finding the object by a attribute criteria and then changing the attributes of those.
As I already mentioned, the list of attributes can be accessed in the model itself by self.space.agents or self.grid.agents.