def test_biocm():
pymodel = s.load_model("models/biocm.yml")
biocm = s.load_module(pymodel, "models")
params = s.to_array(pymodel['parameters'])
forcing = s.to_array(pymodel['forcing'])
state = s.to_array(pymodel['state'])
model = biocm.model(params, forcing, 0.05)
dXdt = model(state.tolist(), 0)
pydXdt = s.to_array(sv.deriv(pymodel))
assert_true(nx.allclose(dXdt, pydXdt))
def test_biocm_integration(I=20):
N = 5000
dt = 0.05
pymodel = s.load_model("models/biocm.yml")
biocm = s.load_module(pymodel, "models")
params = s.to_array(pymodel['parameters'])
x0 = s.to_array(pymodel['state'])
data = nx.ones(N) * I
model = biocm.model(params, data, dt)
X = biocm.integrate(params, x0, data, dt, dt)
X2 = biocm.integrate(model, x0, data.size * dt, dt)
assert_true(nx.allclose(X, X2))
return X
def test_nakl_integration(I=50):
pymodel = s.load_model("models/nakl.yml")
nakl = s.load_module(pymodel, "models")
N = 10000
dt = 0.05
params = nakl_params[0]['params']
x0 = nakl_params[0]['state']
data = nx.ones(N) * I
model = nakl.model(params, data, dt)
X = nakl.integrate(params, x0, data, dt, dt)
X2 = nakl.integrate(model, x0, data.size * dt, dt)
assert_true(nx.allclose(X, X2))
return X
def test_passive_ei_deriv():
pymodel = s.load_model("models/passive_ei.yml")
passive_ei = s.load_module(pymodel, "models")
def compare(params, forcing, state):
model = passive_ei.model(params, forcing, 0.05)
dXdt = model(state, 0)
s.update_model(pymodel,
state=state,
forcing=forcing[0],
parameters=params)
pydXdt = s.to_array(sv.deriv(pymodel))
assert_true(nx.allclose(dXdt, pydXdt))
for tvals in passive_params:
yield compare, tvals['params'], tvals['forcing'], tvals['state']
def test_nakl_dxdt():
pymodel = s.load_model("models/nakl.yml")
nakl = s.load_module(pymodel, "models")
def compare_nakl(params, forcing, state):
model = nakl.model(params, forcing, 0.05)
dXdt = model(state, 0)
s.update_model(pymodel,
state=state,
forcing=forcing,
parameters=params)
pydXdt = s.to_array(sv.deriv(pymodel))
assert_true(nx.allclose(dXdt, pydXdt))
for tvals in nakl_params:
yield compare_nakl, tvals['params'], tvals['forcing'], tvals['state']
def test_adex_dxdt():
pymodel = s.load_model("models/adex.yml")
adex = s.load_module(pymodel, "models")
def compare_adex(params, forcing, state):
# inj = models.timeseries(forcing, 0.05)
model = adex.model(params, forcing, 0.05)
dXdt = model(state, 0)
s.update_model(pymodel,
state=state,
forcing=forcing,
parameters=params)
pydXdt = s.to_array(sv.deriv(pymodel))
assert_true(nx.allclose(dXdt, pydXdt))
for tvals in adex_params:
yield compare_adex, tvals['params'], tvals['forcing'], tvals['state']
def test_adex_integration():
pymodel = s.load_model("models/adex.yml")
adex = s.load_module(pymodel, "models")
I = 500
N = 1000
dt = 0.05
params = adex_params[0]['params']
x0 = adex_params[0]['state']
data = nx.ones(N) * I
model = adex.model(params, data, dt)
X = adex.integrate(params, x0, data, dt, dt)
X2 = adex.integrate(model, x0, data.size * dt, dt)
assert_true(nx.allclose(X, X2))
# with these parameters, there should be exactly one spike at 555
events = (X[:, 0] > 29.9).nonzero()[0]
assert_equal(events.size, 1)
assert_equal(events[0], 555)
return X
def test_passive_ei_integration():
pymodel = s.load_model("models/passive_ei.yml")
passive_ei = s.load_module(pymodel, "models")
g_ex = 1.0
g_inh = 0.5
N = 2000
dt = 0.05
params = s.to_array(pymodel['parameters'])
forcing = nx.column_stack([nx.ones(N) * g_ex, nx.ones(N) * g_inh])
x0 = s.to_array(pymodel['state'])
model = passive_ei.model(params, forcing, dt)
X = passive_ei.integrate(params, x0, forcing, dt, dt)
X2 = passive_ei.integrate(model, x0, N * dt, dt)
assert_true(nx.allclose(X, X2))
# steady-state V should be a weighted average of the reversal potentials
g_l = s.get_param_value(pymodel, 'g_l')
Evals = [s.get_param_value(pymodel, n) for n in ('E_l', 'E_ex', 'E_inh')]
gvals = [g_l, g_ex * g_l.units, g_inh * g_l.units]
V_steady = sum(g * e for e, g in zip(Evals, gvals)) / sum(gvals)
events = (X[:, 0] > 29.9).nonzero()[0]
assert_almost_equal(V_steady.magnitude, X[-1, 0], places=2)
def test_adex_reset():
pymodel = s.load_model("models/adex.yml")
adex = s.load_module(pymodel, "models")
def compare_reset(params, forcing, state):
model = adex.model(params, forcing, 0.05)
reset, new_state = model.reset(state)
s.update_model(pymodel,
state=state,
forcing=forcing,
parameters=params)
pypost_state = sv.reset(pymodel)
if reset:
pypost_state = s.to_array(pypost_state)
assert_true(nx.allclose(new_state, pypost_state))
else:
assert_equal(reset, pypost_state)
assert_true(nx.allclose(state, new_state))
for tvals in adex_params:
yield compare_reset, tvals['params'], tvals['forcing'], tvals['state']