def test__children(self):
signal = self.signals[0]
segment = Segment(name='seg1')
segment.analogsignals = [signal]
segment.create_many_to_one_relationship()
rchan = RecordingChannel(name='rchan1')
rchan.analogsignals = [signal]
rchan.create_many_to_one_relationship()
self.assertEqual(signal._single_parent_objects,
('Segment', 'RecordingChannel'))
self.assertEqual(signal._multi_parent_objects, ())
self.assertEqual(signal._single_parent_containers,
('segment', 'recordingchannel'))
self.assertEqual(signal._multi_parent_containers, ())
self.assertEqual(signal._parent_objects,
('Segment', 'RecordingChannel'))
self.assertEqual(signal._parent_containers,
('segment', 'recordingchannel'))
self.assertEqual(len(signal.parents), 2)
self.assertEqual(signal.parents[0].name, 'seg1')
self.assertEqual(signal.parents[1].name, 'rchan1')
assert_neo_object_is_compliant(signal)
def test__children(self):
signal = self.signals[0]
segment = Segment(name='seg1')
segment.analogsignals = [signal]
segment.create_many_to_one_relationship()
rchan = RecordingChannel(name='rchan1')
rchan.analogsignals = [signal]
rchan.create_many_to_one_relationship()
self.assertEqual(signal._single_parent_objects,
('Segment', 'RecordingChannel'))
self.assertEqual(signal._multi_parent_objects, ())
self.assertEqual(signal._single_parent_containers,
('segment', 'recordingchannel'))
self.assertEqual(signal._multi_parent_containers, ())
self.assertEqual(signal._parent_objects,
('Segment', 'RecordingChannel'))
self.assertEqual(signal._parent_containers,
('segment', 'recordingchannel'))
self.assertEqual(len(signal.parents), 2)
self.assertEqual(signal.parents[0].name, 'seg1')
self.assertEqual(signal.parents[1].name, 'rchan1')
assert_neo_object_is_compliant(signal)
def proc_dam(filename):
'''Load an dam file that has already been processed by the official matlab
file converter. That matlab data is saved to an m-file, which is then
converted to a numpy '.npz' file. This numpy file is the file actually
loaded. This function converts it to a neo block and returns the block.
This block can be compared to the block produced by BrainwareDamIO to
make sure BrainwareDamIO is working properly
block = proc_dam(filename)
filename: The file name of the numpy file to load. It should end with
'*_dam_py?.npz'. This will be converted to a neo 'file_origin' property
with the value '*.dam', so the filename to compare should fit that pattern.
'py?' should be 'py2' for the python 2 version of the numpy file or 'py3'
for the python 3 version of the numpy file.
example: filename = 'file1_dam_py2.npz'
dam file name = 'file1.dam'
'''
with np.load(filename) as damobj:
damfile = damobj.items()[0][1].flatten()
filename = os.path.basename(filename[:-12] + '.dam')
signals = [res.flatten() for res in damfile['signal']]
stimIndexes = [int(res[0, 0].tolist()) for res in damfile['stimIndex']]
timestamps = [res[0, 0] for res in damfile['timestamp']]
block = Block(file_origin=filename)
rcg = RecordingChannelGroup(file_origin=filename)
chan = RecordingChannel(file_origin=filename, index=0, name='Chan1')
rcg.channel_indexes = np.array([1])
rcg.channel_names = np.array(['Chan1'], dtype='S')
block.recordingchannelgroups.append(rcg)
rcg.recordingchannels.append(chan)
params = [res['params'][0, 0].flatten() for res in damfile['stim']]
values = [res['values'][0, 0].flatten() for res in damfile['stim']]
params = [[res1[0] for res1 in res] for res in params]
values = [[res1 for res1 in res] for res in values]
stims = [dict(zip(param, value)) for param, value in zip(params, values)]
fulldam = zip(stimIndexes, timestamps, signals, stims)
for stimIndex, timestamp, signal, stim in fulldam:
sig = AnalogSignal(signal=signal * pq.mV,
t_start=timestamp * pq.d,
file_origin=filename,
sampling_period=1. * pq.s)
segment = Segment(file_origin=filename, index=stimIndex, **stim)
segment.analogsignals = [sig]
block.segments.append(segment)
create_many_to_one_relationship(block)
return block
def populate_RecordingChannel(bl, remove_from_annotation=True):
"""
When a Block is
Block>Segment>AnalogSIgnal
this function auto create all RecordingChannel following these rules:
* when 'channel_index ' is in AnalogSIgnal the corresponding
RecordingChannel is created.
* 'channel_index ' is then set to None if remove_from_annotation
* only one RecordingChannelGroup is created
It is a utility at the end of creating a Block for IO.
Usage:
>>> populate_RecordingChannel(a_block)
"""
recordingchannels = {}
for seg in bl.segments:
for anasig in seg.analogsignals:
if getattr(anasig, 'channel_index', None) is not None:
ind = int(anasig.channel_index)
if ind not in recordingchannels:
recordingchannels[ind] = RecordingChannel(index=ind)
if 'channel_name' in anasig.annotations:
channel_name = anasig.annotations['channel_name']
recordingchannels[ind].name = channel_name
if remove_from_annotation:
anasig.annotations.pop('channel_name')
recordingchannels[ind].analogsignals.append(anasig)
anasig.recordingchannel = recordingchannels[ind]
if remove_from_annotation:
anasig.channel_index = None
indexes = np.sort(list(recordingchannels.keys())).astype('i')
names = np.array([recordingchannels[idx].name for idx in indexes],
dtype='S')
rcg = RecordingChannelGroup(name='all channels',
channel_indexes=indexes,
channel_names=names)
bl.recordingchannelgroups.append(rcg)
for ind in indexes:
# many to many relationship
rcg.recordingchannels.append(recordingchannels[ind])
recordingchannels[ind].recordingchannelgroups.append(rcg)
def setup_recordingchannels(self):
rchanname11 = 'chan 1 1'
rchanname12 = 'chan 1 2'
rchanname21 = 'chan 2 1'
rchanname22 = 'chan 2 2'
self.rchannames1 = [rchanname11, rchanname12]
self.rchannames2 = [rchanname21, rchanname22, rchanname11]
self.rchannames = [rchanname11, rchanname12, rchanname21, rchanname22]
rchan11 = RecordingChannel(name=rchanname11)
rchan12 = RecordingChannel(name=rchanname12)
rchan21 = RecordingChannel(name=rchanname21)
rchan22 = RecordingChannel(name=rchanname22)
rchan23 = RecordingChannel(name=rchanname11)
self.rchan1 = [rchan11, rchan12]
self.rchan2 = [rchan21, rchan22, rchan23]
self.rchan = [rchan11, rchan12, rchan21, rchan22]
def populate_RecordingChannel(bl, remove_from_annotation=True):
"""
When a Block is
Block>Segment>AnalogSIgnal
this function auto create all RecordingChannel following these rules:
* when 'channel_index ' is in AnalogSIgnal the corresponding
RecordingChannel is created.
* 'channel_index ' is then set to None if remove_from_annotation
* only one RecordingChannelGroup is created
It is a utility at the end of creating a Block for IO.
Usage:
>>> populate_RecordingChannel(a_block)
"""
recordingchannels = {}
for seg in bl.segments:
for anasig in seg.analogsignals:
if getattr(anasig, 'channel_index', None) is not None:
ind = int(anasig.channel_index)
if ind not in recordingchannels:
recordingchannels[ind] = RecordingChannel(index=ind)
if 'channel_name' in anasig.annotations:
channel_name = anasig.annotations['channel_name']
recordingchannels[ind].name = channel_name
if remove_from_annotation:
anasig.annotations.pop('channel_name')
recordingchannels[ind].analogsignals.append(anasig)
anasig.recordingchannel = recordingchannels[ind]
if remove_from_annotation:
anasig.channel_index = None
indexes = np.sort(list(recordingchannels.keys())).astype('i')
names = np.array([recordingchannels[idx].name for idx in indexes],
dtype='S')
rcg = RecordingChannelGroup(name='all channels',
channel_indexes=indexes,
channel_names=names)
bl.recordingchannelgroups.append(rcg)
for ind in indexes:
# many to many relationship
rcg.recordingchannels.append(recordingchannels[ind])
recordingchannels[ind].recordingchannelgroups.append(rcg)
def test__children(self):
signal = self.signals[0]
segment = Segment(name="seg1")
segment.analogsignals = [signal]
segment.create_many_to_one_relationship()
rchan = RecordingChannel(name="rchan1")
rchan.analogsignals = [signal]
rchan.create_many_to_one_relationship()
self.assertEqual(signal._container_child_objects, ())
self.assertEqual(signal._data_child_objects, ())
self.assertEqual(signal._single_parent_objects, ("Segment", "RecordingChannel"))
self.assertEqual(signal._multi_child_objects, ())
self.assertEqual(signal._multi_parent_objects, ())
self.assertEqual(signal._child_properties, ())
self.assertEqual(signal._single_child_objects, ())
self.assertEqual(signal._container_child_containers, ())
self.assertEqual(signal._data_child_containers, ())
self.assertEqual(signal._single_child_containers, ())
self.assertEqual(signal._single_parent_containers, ("segment", "recordingchannel"))
self.assertEqual(signal._multi_child_containers, ())
self.assertEqual(signal._multi_parent_containers, ())
self.assertEqual(signal._child_objects, ())
self.assertEqual(signal._child_containers, ())
self.assertEqual(signal._parent_objects, ("Segment", "RecordingChannel"))
self.assertEqual(signal._parent_containers, ("segment", "recordingchannel"))
self.assertEqual(signal.children, ())
self.assertEqual(len(signal.parents), 2)
self.assertEqual(signal.parents[0].name, "seg1")
self.assertEqual(signal.parents[1].name, "rchan1")
signal.create_many_to_one_relationship()
signal.create_many_to_many_relationship()
signal.create_relationship()
assert_neo_object_is_compliant(signal)
def proc_src(filename):
'''Load an src file that has already been processed by the official matlab
file converter. That matlab data is saved to an m-file, which is then
converted to a numpy '.npz' file. This numpy file is the file actually
loaded. This function converts it to a neo block and returns the block.
This block can be compared to the block produced by BrainwareSrcIO to
make sure BrainwareSrcIO is working properly
block = proc_src(filename)
filename: The file name of the numpy file to load. It should end with
'*_src_py?.npz'. This will be converted to a neo 'file_origin' property
with the value '*.src', so the filename to compare should fit that pattern.
'py?' should be 'py2' for the python 2 version of the numpy file or 'py3'
for the python 3 version of the numpy file.
example: filename = 'file1_src_py2.npz'
src file name = 'file1.src'
'''
with np.load(filename) as srcobj:
srcfile = srcobj.items()[0][1]
filename = os.path.basename(filename[:-12] + '.src')
block = Block(file_origin=filename)
NChannels = srcfile['NChannels'][0, 0][0, 0]
side = str(srcfile['side'][0, 0][0])
ADperiod = srcfile['ADperiod'][0, 0][0, 0]
comm_seg = proc_src_comments(srcfile, filename)
block.segments.append(comm_seg)
rcg = proc_src_units(srcfile, filename)
chan_nums = np.arange(NChannels, dtype='int')
chan_names = []
for i in chan_nums:
name = 'Chan' + str(i)
chan_names.append(name)
chan = RecordingChannel(file_origin='filename',
name=name,
index=int(i))
rcg.recordingchannels.append(chan)
rcg.channel_indexes = chan_nums
rcg.channel_names = np.array(chan_names, dtype='string_')
block.recordingchannelgroups.append(rcg)
for rep in srcfile['sets'][0, 0].flatten():
proc_src_condition(rep, filename, ADperiod, side, block)
block.create_many_to_one_relationship()
return block
def read_block(self, lazy=False, cascade=True, **kargs):
'''
Reads a block from the raw data file "fname" generated
with BrainWare
'''
# there are no keyargs implemented to so far. If someone tries to pass
# them they are expecting them to do something or making a mistake,
# neither of which should pass silently
if kargs:
raise NotImplementedError('This method does not have any '
'argument implemented yet')
self._fsrc = None
block = Block(file_origin=self._filename)
# if we aren't doing cascade, don't load anything
if not cascade:
return block
# create the objects to store other objects
rcg = RecordingChannelGroup(file_origin=self._filename)
rchan = RecordingChannel(file_origin=self._filename,
index=1,
name='Chan1')
# load objects into their containers
rcg.recordingchannels.append(rchan)
block.recordingchannelgroups.append(rcg)
rcg.channel_indexes = np.array([1])
rcg.channel_names = np.array(['Chan1'], dtype='S')
# open the file
with open(self._path, 'rb') as fobject:
# while the file is not done keep reading segments
while True:
seg = self._read_segment(fobject, lazy)
# if there are no more Segments, stop
if not seg:
break
# store the segment and signals
block.segments.append(seg)
rchan.analogsignals.append(seg.analogsignals[0])
# remove the file object
self._fsrc = None
create_many_to_one_relationship(block)
return block
def read_block(self, lazy=False, cascade=True, load_waveforms=False):
"""
"""
# Create block
bl = Block(file_origin=self.filename)
if not cascade:
return bl
seg = self.read_segment(self.filename,
lazy=lazy,
cascade=cascade,
load_waveforms=load_waveforms)
bl.segments.append(seg)
neo.io.tools.populate_RecordingChannel(bl,
remove_from_annotation=False)
# This create rc and RCG for attaching Units
rcg0 = bl.recordingchannelgroups[0]
def find_rc(chan):
for rc in rcg0.recordingchannels:
if rc.index == chan:
return rc
for st in seg.spiketrains:
chan = st.annotations['channel_index']
rc = find_rc(chan)
if rc is None:
rc = RecordingChannel(index=chan)
rcg0.recordingchannels.append(rc)
rc.recordingchannelgroups.append(rcg0)
if len(rc.recordingchannelgroups) == 1:
rcg = RecordingChannelGroup(name='Group {}'.format(chan))
rcg.recordingchannels.append(rc)
rc.recordingchannelgroups.append(rcg)
bl.recordingchannelgroups.append(rcg)
else:
rcg = rc.recordingchannelgroups[1]
unit = Unit(name=st.name)
rcg.units.append(unit)
unit.spiketrains.append(st)
bl.create_many_to_one_relationship()
return bl
def read_block(self, lazy=False, cascade=True, channel_index=None):
"""
Arguments:
Channel_index: can be int, iterable or None to select one, many or all channel(s)
"""
blk = Block()
if cascade:
seg = Segment(file_origin=self._filename)
blk.segments += [seg]
if channel_index:
if type(channel_index) is int: channel_index = [channel_index]
if type(channel_index) is list:
channel_index = np.array(channel_index)
else:
channel_index = np.arange(0, self._attrs['shape'][1])
rcg = RecordingChannelGroup(name='all channels',
channel_indexes=channel_index)
blk.recordingchannelgroups.append(rcg)
for idx in channel_index:
# read nested analosignal
ana = self.read_analogsignal(
channel_index=idx,
lazy=lazy,
cascade=cascade,
)
chan = RecordingChannel(index=int(idx))
seg.analogsignals += [ana]
chan.analogsignals += [ana]
rcg.recordingchannels.append(chan)
seg.duration = (self._attrs['shape'][0] /
self._attrs['kwik']['sample_rate']) * pq.s
# neo.tools.populate_RecordingChannel(blk)
blk.create_many_to_one_relationship()
return blk
def read_block(
self,
lazy=False,
cascade=True,
):
"""
"""
tree = ElementTree.parse(self.filename)
root = tree.getroot()
acq = root.find('acquisitionSystem')
nbits = int(acq.find('nBits').text)
nbchannel = int(acq.find('nChannels').text)
sampling_rate = float(acq.find('samplingRate').text) * pq.Hz
voltage_range = float(acq.find('voltageRange').text)
#offset = int(acq.find('offset').text)
amplification = float(acq.find('amplification').text)
bl = Block(
file_origin=os.path.basename(self.filename).replace('.xml', ''))
if cascade:
seg = Segment()
bl.segments.append(seg)
# RC and RCG
rc_list = []
for i, xml_rcg in enumerate(
root.find('anatomicalDescription').find(
'channelGroups').findall('group')):
rcg = RecordingChannelGroup(name='Group {}'.format(i))
bl.recordingchannelgroups.append(rcg)
for xml_rc in xml_rcg:
rc = RecordingChannel(index=int(xml_rc.text))
rc_list.append(rc)
rcg.recordingchannels.append(rc)
rc.recordingchannelgroups.append(rcg)
rcg.channel_indexes = np.array(
[rc.index for rc in rcg.recordingchannels], dtype=int)
rcg.channel_names = np.array([
'Channel{}'.format(rc.index)
for rc in rcg.recordingchannels
],
dtype='S')
# AnalogSignals
reader = RawBinarySignalIO(
filename=self.filename.replace('.xml', '.dat'))
seg2 = reader.read_segment(
cascade=True,
lazy=lazy,
sampling_rate=sampling_rate,
t_start=0. * pq.s,
unit=pq.V,
nbchannel=nbchannel,
bytesoffset=0,
dtype=np.int16 if nbits <= 16 else np.int32,
rangemin=-voltage_range / 2.,
rangemax=voltage_range / 2.,
)
for s, sig in enumerate(seg2.analogsignals):
if not lazy:
sig /= amplification
sig.segment = seg
seg.analogsignals.append(sig)
rc_list[s].analogsignals.append(sig)
create_many_to_one_relationship(bl)
return bl
