def main():
# This time we don't need an environment since we just going to look
# at data in the trajectory
traj = Trajectory('FiringRate', add_time=False)
# Let's load the trajectory from the file
# Only load the parameters, we will load the results on the fly as we need them
traj.f_load(filename='./hdf5/FiringRate.hdf5', load_parameters=2,
load_results=0, load_derived_parameters=0)
# We'll simply use auto loading so all data will be loaded when needed.
traj.v_auto_load = True
rates_frame = traj.res.summary.firing_rates.rates_frame
# Here we load the data automatically on the fly
plt.figure()
plt.subplot(2,1,1)
#Let's iterate through the columns and plot the different firing rates :
for tau_ref, I_col in rates_frame.iteritems():
plt.plot(I_col.index, I_col, label='Avg. Rate for tau_ref=%s' % str(tau_ref))
# Label the plot
plt.xlabel('I')
plt.ylabel('f[Hz]')
plt.title('Firing as a function of input current `I`')
plt.legend()
# Also let's plot an example run, how about run 13 ?
example_run = 13
traj.v_idx = example_run # We make the trajectory behave as a single run container.
# This short statement has two major effects:
# a) all explored parameters are set to the value of run 13,
# b) if there are tree nodes with names other than the current run aka `run_00000013`
# they are simply ignored, if we use the `$` sign or the `crun` statement,
# these are translated into `run_00000013`.
# Get the example data
example_I = traj.I
example_tau_ref = traj.tau_ref
example_V = traj.results.neuron.crun.V # Here crun stands for run_00000013
# We need the time step...
dt = traj.dt
# ...to create an x-axis for the plot
dt_array = [irun * dt for irun in range(len(example_V))]
# And plot the development of V over time,
# Since this is rather repetitive, we only
# plot the first eighth of it.
plt.subplot(2,1,2)
plt.plot(dt_array, example_V)
plt.xlim((0, dt*len(example_V)/8))
# Label the axis
plt.xlabel('t[ms]')
plt.ylabel('V')
plt.title('Example of development of V for I=%s, tau_ref=%s in run %d' %
(str(example_I), str(example_tau_ref), traj.v_idx))
# And let's take a look at it
plt.show()
# Finally revoke the `traj.v_idx=13` statement and set everything back to normal.
# Since our analysis is done here, we could skip that, but it is always a good idea
# to do that.
traj.f_restore_default()
