# Copyright 2017. Allen Institute. All rights reserved
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import os
from six import string_types
import h5py
import pandas as pd
import matplotlib.pyplot as plt
import numpy as np
from bmtk.utils.sonata.config import SonataConfig as cfg
def _get_config(config):
if isinstance(config, string_types):
return cfg.from_json(config)
elif isinstance(config, dict):
return config
else:
raise Exception('Could not convert {} (type "{}") to json.'.format(config, type(config)))
[docs]def plot_potential(cell_vars_h5=None, config_file=None, gids=None, show_plot=True, save=False):
if (cell_vars_h5 or config_file) is None:
raise Exception('Please specify a cell_vars hdf5 file or a simulation config.')
if cell_vars_h5 is not None:
plot_potential_hdf5(cell_vars_h5, gids=gids, show_plot=show_plot,
save_as='sim_potential.jpg' if save else None)
else:
# load the json file or object
if isinstance(config_file, string_types):
config = cfg.from_json(config_file)
elif isinstance(config_file, dict):
config = config_file
else:
raise Exception('Could not convert {} (type "{}") to json.'.format(config_file, type(config_file)))
gid_list = gids or config['node_id_selections']['save_cell_vars']
for gid in gid_list:
save_as = '{}_v.jpg'.format(gid) if save else None
title = 'cell gid {}'.format(gid)
var_h5 = os.path.join(config['output']['cell_vars_dir'], '{}.h5'.format(gid))
plot_potential_hdf5(var_h5, title, show_plot, save_as)
[docs]def plot_potential_hdf5(cell_vars_h5, gids, title='membrane potential', show_plot=True, save_as=None):
data_h5 = h5py.File(cell_vars_h5, 'r')
membrane_trace = data_h5['data']
time_ds = data_h5['/mapping/time']
tstart = time_ds[0]
tstop = time_ds[1]
x_axis = np.linspace(tstart, tstop, len(membrane_trace), endpoint=True)
gids_ds = data_h5['/mapping/gids']
index_ds = data_h5['/mapping/index_pointer']
index_lookup = {gids_ds[i]: (index_ds[i], index_ds[i+1]) for i in range(len(gids_ds))}
gids = gids_ds.keys() if gids_ds is None else gids
for gid in gids:
var_indx = index_lookup[gid][0]
plt.plot(x_axis, membrane_trace[:, var_indx], label=gid)
plt.xlabel('time (ms)')
plt.ylabel('membrane (mV)')
plt.title(title)
plt.legend(markerscale=2, scatterpoints=1)
if save_as is not None:
plt.savefig(save_as)
if show_plot:
plt.show()
[docs]def plot_calcium(cell_vars_h5=None, config_file=None, gids=None, show_plot=True, save=False):
if (cell_vars_h5 or config_file) is None:
raise Exception('Please specify a cell_vars hdf5 file or a simulation config.')
if cell_vars_h5 is not None:
plot_calcium_hdf5(cell_vars_h5, gids, show_plot=show_plot, save_as='sim_ca.jpg' if save else None)
else:
# load the json file or object
if isinstance(config_file, string_types):
config = cfg.from_json(config_file)
elif isinstance(config_file, dict):
config = config_file
else:
raise Exception('Could not convert {} (type "{}") to json.'.format(config_file, type(config_file)))
gid_list = gids or config['node_id_selections']['save_cell_vars']
for gid in gid_list:
save_as = '{}_v.jpg'.format(gid) if save else None
title = 'cell gid {}'.format(gid)
var_h5 = os.path.join(config['output']['cell_vars_dir'], '{}.h5'.format(gid))
plot_calcium_hdf5(var_h5, title, show_plot, save_as)
[docs]def plot_calcium_hdf5(cell_vars_h5, gids, title='Ca2+ influx', show_plot=True, save_as=None):
data_h5 = h5py.File(cell_vars_h5, 'r')
cai_trace = data_h5['cai/data']
time_ds = data_h5['/mapping/time']
tstart = time_ds[0]
tstop = time_ds[1]
x_axis = np.linspace(tstart, tstop, len(cai_trace), endpoint=True)
gids_ds = data_h5['/mapping/gids']
index_ds = data_h5['/mapping/index_pointer']
index_lookup = {gids_ds[i]: (index_ds[i], index_ds[i+1]) for i in range(len(gids_ds))}
gids = gids_ds.keys() if gids_ds is None else gids
for gid in gids:
var_indx = index_lookup[gid][0]
plt.plot(x_axis, cai_trace[:, var_indx], label=gid)
#plt.plot(x_axis, cai_trace)
plt.xlabel('time (ms)')
plt.ylabel('calcium [Ca2+]')
plt.title(title)
plt.legend(markerscale=2, scatterpoints=1)
if save_as is not None:
plt.savefig(save_as)
if show_plot:
plt.show()
[docs]def spikes_table(config_file, spikes_file=None):
config = _get_config(config_file)
spikes_file = config['output']['spikes_file']
spikes_h5 = h5py.File(spikes_file, 'r')
gids = np.array(spikes_h5['/spikes/gids'], dtype=np.uint)
times = np.array(spikes_h5['/spikes/timestamps'], dtype=np.float)
return pd.DataFrame(data={'gid': gids, 'spike time (ms)': times})
#return pd.read_csv(spikes_ascii, names=['time (ms)', 'cell gid'], sep=' ')
[docs]def nodes_table(nodes_file, population):
# TODO: Integrate into sonata api
nodes_h5 = h5py.File(nodes_file, 'r')
nodes_pop = nodes_h5['/nodes'][population]
root_df = pd.DataFrame(data={'node_id': nodes_pop['node_id'], 'node_type_id': nodes_pop['node_type_id'],
'node_group_id': nodes_pop['node_group_id'],
'node_group_index': nodes_pop['node_group_index']}) #,
#index=[nodes_pop['node_group_id'], nodes_pop['node_group_index']])
root_df = root_df.set_index(['node_group_id', 'node_group_index'])
node_grps = np.unique(nodes_pop['node_group_id'])
for grp_id in node_grps:
sub_group = nodes_pop[str(grp_id)]
grp_df = pd.DataFrame()
for hf_key in sub_group:
hf_obj = sub_group[hf_key]
if isinstance(hf_obj, h5py.Dataset):
grp_df[hf_key] = hf_obj
subgrp_len = len(grp_df)
if subgrp_len > 0:
grp_df['node_group_id'] = [grp_id]*subgrp_len
grp_df['node_group_index'] = range(subgrp_len)
grp_df = grp_df.set_index(['node_group_id', 'node_group_index'])
root_df = root_df.join(other=grp_df, how='left')
return root_df.reset_index(drop=True)
[docs]def node_types_table(node_types_file, population):
return pd.read_csv(node_types_file, sep=' ')
