74 lines
1.6 KiB
Markdown
74 lines
1.6 KiB
Markdown
System Model Parameter Sweep
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==
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Parametrization of a System Model configuration that produces multiple configurations.
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##### Set Parameters
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```python
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params = {
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'alpha': [1],
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'beta': [2, 5],
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'gamma': [3, 4],
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'omega': [7]
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}
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```
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The parameters above produce 2 simulations.
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* Simulation 1:
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* `alpha = 1`
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* `beta = 2`
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* `gamma = 3`
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* `omega = 7`
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* Simulation 2:
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* `alpha = 1`
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* `beta = 5`
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* `gamma = 4`
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* `omega = 7`
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All parameters can also be set to include a single parameter each, which will result in a single simulation.
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##### Example State Updates
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Previous State:
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`y = 0`
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```python
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def state_update(_params, step, sH, s, _input):
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y = 'state'
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x = s['state'] + _params['alpha'] + _params['gamma']
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return y, x
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```
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* Updated State:
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* Simulation 1: `y = 4 = 0 + 1 + 3`
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* Simulation 2: `y = 5 = 0 + 1 + 4`
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##### Example Policy Updates
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```python
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# Internal States per Mechanism
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def policies(_params, step, sH, s):
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return {'beta': _params['beta'], 'gamma': _params['gamma']}
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```
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* Simulation 1: `{'beta': 2, 'gamma': 3]}`
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* Simulation 2: `{'beta': 5, 'gamma': 4}`
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##### Configure Simulation
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```python
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from cadCAD.configuration.utils import config_sim
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g = {
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'alpha': [1],
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'beta': [2, 5],
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'gamma': [3, 4],
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'omega': [7]
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}
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sim_config = config_sim(
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{
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"N": 2,
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"T": range(5),
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"M": g,
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}
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)
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```
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#### Example
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##### * [System Model Configuration](https://github.com/BlockScience/cadCAD-Tutorials/blob/master/Documentation/examples/param_sweep.py)
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##### * Simulation Results:
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