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refactor: Simplify experimental Schelling example #88

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merged 5 commits into from
Jan 28, 2024
Merged

refactor: Simplify experimental Schelling example #88

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acb271c
Schelling: Use JupyterViz slider API
rht Jan 18, 2024
834724c
Reduce line use of app.py
rht Jan 18, 2024
0fb046d
Schelling: Use default viz name given by JupyterViz
rht Jan 18, 2024
51b3df2
schelling experimental: Add _advance_time()
rht Jan 22, 2024
076785e
Apply ruff --fix
rht Jan 28, 2024
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33 changes: 5 additions & 28 deletions examples/schelling_experimental/app.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
from mesa.experimental import JupyterViz, make_text
from mesa.experimental import JupyterViz, Slider, make_text
from model import Schelling


Expand All @@ -10,35 +10,13 @@ def get_happy_agents(model):


def agent_portrayal(agent):
color = "tab:orange" if agent.type == 0 else "tab:blue"
return {"color": color}
return {"color": "tab:orange" if agent.type == 0 else "tab:blue"}


model_params = {
"density": {
"type": "SliderFloat",
"value": 0.8,
"label": "Agent density",
"min": 0.1,
"max": 1.0,
"step": 0.1,
},
"minority_pc": {
"type": "SliderFloat",
"value": 0.2,
"label": "Fraction minority",
"min": 0.0,
"max": 1.0,
"step": 0.05,
},
"homophily": {
"type": "SliderInt",
"value": 3,
"label": "Homophily",
"min": 0,
"max": 8,
"step": 1,
},
"density": Slider("Agent density", 0.8, 0.1, 1.0, 0.1),
"minority_pc": Slider("Fraction minority", 0.2, 0.0, 1.0, 0.05),
"homophily": Slider("Homophily", 3, 0, 8, 1),
"width": 20,
"height": 20,
}
Expand All @@ -47,7 +25,6 @@ def agent_portrayal(agent):
Schelling,
model_params,
measures=["happy", make_text(get_happy_agents)],
name="Schelling",
agent_portrayal=agent_portrayal,
)
page # noqa
2 changes: 2 additions & 0 deletions examples/schelling_experimental/model.py
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,8 @@ def step(self):
"""
self.happy = 0 # Reset counter of happy agents
self.agents.shuffle().do("step")
# Must be before data collection.
self._advance_time() # Temporary API; will be finalized by Mesa 3.0 release
# collect data
self.datacollector.collect(self)

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