def select_sensors(self):
if len(self.rejected_chans) > 0:
self.signal_processor.cnt = select_channels(
self.signal_processor.cnt, self.rejected_chans, invert=True)
if (self.sensor_names is not None) and (self.sensor_names
is not 'all'):
self.signal_processor.cnt = select_channels(
self.signal_processor.cnt, self.sensor_names)
cleaned_sensor_names = self.signal_processor.cnt.axes[-1]
self.sensor_names = cleaned_sensor_names
def clean_train_test_cnt(train_cnt,
test_cnt,
train_cleaner,
test_cleaner,
copy_data=False):
log.info("Clean Training Set...")
train_clean_result = train_cleaner.clean(train_cnt)
log_clean_result(train_clean_result)
# remove chans rejected by train cleaner from test set
test_cnt = select_channels(test_cnt,
train_clean_result.rejected_chan_names,
invert=True)
log.info("Clean Test Set...")
test_clean_result = test_cleaner.clean(test_cnt, ignore_chans=True)
log_clean_result(test_clean_result)
assert len(test_clean_result.rejected_chan_names) == 0, (
"There should be no rejected channels on test set, instead got "
"{:s}".format(test_clean_result.rejected_chan_names))
log.info("Create Cleaned Cnt Sets...")
train_markers = list(itertools.chain(*train_cleaner.marker_def.values()))
clean_train_cnt = restrict_cnt(train_cnt,
train_markers,
train_clean_result.clean_trials,
train_clean_result.rejected_chan_names,
copy_data=copy_data)
test_markers = list(itertools.chain(*test_cleaner.marker_def.values()))
clean_test_cnt = restrict_cnt(test_cnt,
test_markers,
test_clean_result.clean_trials,
test_clean_result.rejected_chan_names,
copy_data=copy_data)
return clean_train_cnt, clean_test_cnt
def clean_train_test_cnt(train_cnt, test_cnt, train_cleaner, test_cleaner,
copy_data=False):
log.info("Clean Training Set...")
train_clean_result = train_cleaner.clean(train_cnt)
log_clean_result(train_clean_result)
# remove chans rejected by train cleaner from test set
test_cnt = select_channels(test_cnt,
train_clean_result.rejected_chan_names, invert=True)
log.info("Clean Test Set...")
test_clean_result = test_cleaner.clean(test_cnt, ignore_chans=True)
log_clean_result(test_clean_result)
assert len(test_clean_result.rejected_chan_names) == 0, (
"There should be no rejected channels on test set, instead got "
"{:s}".format(test_clean_result.rejected_chan_names))
log.info("Create Cleaned Cnt Sets...")
clean_train_cnt = restrict_cnt(train_cnt,
train_cleaner.marker_def.values(),
train_clean_result.clean_trials,
train_clean_result.rejected_chan_names,
copy_data=copy_data)
clean_test_cnt = restrict_cnt(test_cnt,
test_cleaner.marker_def.values(),
test_clean_result.clean_trials,
test_clean_result.rejected_chan_names,
copy_data=copy_data)
return clean_train_cnt, clean_test_cnt
def restrict_cnt(cnt, classes, clean_trials, rejected_chan_names, copy_data=False):
cleaned_cnt = select_marker_classes(cnt, classes,
copy_data)
cleaned_cnt = select_marker_epochs(cleaned_cnt, clean_trials,
copy_data)
cleaned_cnt = select_channels(cleaned_cnt, rejected_chan_names, invert=True)
return cleaned_cnt
def test_select_channels(self):
"""Selecting channels with an array of regexes."""
channels = self.dat.data.copy()
self.dat = select_channels(self.dat, ['ca.*', 'cc1'])
np.testing.assert_array_equal(self.dat.axes[-1],
np.array(['ca1', 'ca2', 'cc1']))
np.testing.assert_array_equal(self.dat.data,
channels[:, np.array([0, 1, -1])])
def test_select_channels_inverse(self):
"""Removing channels with an array of regexes."""
channels = self.dat.data.copy()
self.dat = select_channels(self.dat, ['ca.*', 'cc1'], invert=True)
np.testing.assert_array_equal(self.dat.axes[-1],
np.array(['cb1', 'cb2']))
np.testing.assert_array_equal(self.dat.data,
channels[:, np.array([2, 3])])
def preprocess_set(self):
# only remove rejected channels now so that clean function can
# be called multiple times without changing cleaning results
self.cnt = select_channels(self.cnt, self.rejected_chan_names,
invert=True)
if self.sensor_names is not None:
# Note this does not respect order of sensor names,
# it selects chans form given sensor names
# but keeps original order
self.cnt = select_channels(self.cnt, self.sensor_names)
if self.set_cz_to_zero is True:
self.cnt = set_channel_to_zero(self.cnt, 'Cz')
if self.resample_fs is not None:
self.cnt = resample_cnt(self.cnt, newfs=self.resample_fs)
if self.common_average_reference is True:
self.cnt = common_average_reference_cnt(self.cnt)
if self.standardize_cnt is True:
self.cnt = exponential_standardize_cnt(self.cnt)
def restrict_cnt(cnt,
classes,
clean_trials,
rejected_chan_names,
copy_data=False):
cleaned_cnt = select_marker_classes(cnt, classes, copy_data)
cleaned_cnt = select_marker_epochs(cleaned_cnt, clean_trials, copy_data)
cleaned_cnt = select_channels(cleaned_cnt,
rejected_chan_names,
invert=True)
return cleaned_cnt
def preprocess_set(self):
# only remove rejected channels now so that clean function can
# be called multiple times without changing cleaning results
self.cnt = select_channels(self.cnt,
self.rejected_chan_names,
invert=True)
if self.sensor_names is not None:
# Note this does not respect order of sensor names,
# it selects chans form given sensor names
# but keeps original order
self.cnt = select_channels(self.cnt, self.sensor_names)
if self.set_cz_to_zero is True:
self.cnt = set_channel_to_zero(self.cnt, 'Cz')
if self.resample_fs is not None:
self.cnt = resample_cnt(self.cnt, newfs=self.resample_fs)
if self.common_average_reference is True:
self.cnt = common_average_reference_cnt(self.cnt)
if self.standardize_cnt is True:
self.cnt = exponential_standardize_cnt(self.cnt)
def preprocess_test_set(self):
if self.sensor_names is not None:
self.sensor_names = sort_topologically(self.sensor_names)
self.test_cnt = select_channels(self.test_cnt, self.sensor_names)
if self.set_cz_to_zero is True:
self.test_cnt = set_channel_to_zero(self.test_cnt, 'Cz')
if self.resample_fs is not None:
self.test_cnt = resample_cnt(self.test_cnt, newfs=self.resample_fs)
if self.common_average_reference is True:
self.test_cnt = common_average_reference_cnt(self.test_cnt)
if self.standardize_cnt is True:
self.test_cnt = exponential_standardize_cnt(self.test_cnt)
def preprocess_test_set(self):
if self.sensor_names is not None:
self.sensor_names = sort_topologically(self.sensor_names)
self.test_cnt = select_channels(self.test_cnt, self.sensor_names)
if self.set_cz_to_zero is True:
self.test_cnt = set_channel_to_zero(self.test_cnt, 'Cz')
if self.resample_fs is not None:
self.test_cnt = resample_cnt(self.test_cnt, newfs=self.resample_fs)
if self.common_average_reference is True:
self.test_cnt = common_average_reference_cnt(self.test_cnt)
if self.standardize_cnt is True:
self.test_cnt = exponential_standardize_cnt(self.test_cnt)
def plot_timeinterval(data,
r_square=None,
highlights=None,
hcolors=None,
legend=True,
reg_chans=None,
position=None):
"""Plots a simple time interval.
Plots all channels of either continuous data or the mean of epoched
data into a single timeinterval plot.
Parameters
----------
data : wyrm.types.Data
Data object containing the data to plot.
r_square : [values], optional
List containing r_squared values to be plotted beneath the main
plot (default: None).
highlights : [[int, int)]
List of tuples containing the start point (included) and end
point (excluded) of each area to be highlighted (default: None).
hcolors : [colors], optional
A list of colors to use for the highlights areas (default:
None).
legend : Boolean, optional
Flag to switch plotting of the legend on or off (default: True).
reg_chans : [regular expression], optional
A list of regular expressions. The plot will be limited to those
channels matching the regular expressions. (default: None).
position : [x, y, width, height], optional
A Rectangle that limits the plot to its boundaries (default:
None).
Returns
-------
Matplotlib.Axes or (Matplotlib.Axes, Matplotlib.Axes)
The Matplotlib.Axes corresponding to the plotted timeinterval
and, if provided, the Axes corresponding to r_squared values.
Examples
--------
Plots all channels contained in data with a legend.
>>> plot_timeinterval(data)
Same as above, but without the legend.
>>> plot_timeinterval(data, legend=False)
Adds r-square values to the plot.
>>> plot_timeinterval(data, r_square=[values])
Adds a highlighted area to the plot.
>>> plot_timeinterval(data, highlights=[[200, 400]])
To specify the colors of the highlighted areas use 'hcolors'.
>>> plot_timeinterval(data, highlights=[[200, 400]], hcolors=['red'])
"""
dcopy = data.copy()
rect_ti_solo = [.07, .07, .9, .9]
rect_ti_r2 = [.07, .12, .9, .85]
rect_r2 = [.07, .07, .9, .05]
if position is None:
plt.figure()
if r_square is None:
pos_ti = rect_ti_solo
else:
pos_ti = rect_ti_r2
pos_r2 = rect_r2
else:
if r_square is None:
pos_ti = _transform_rect(position, rect_ti_solo)
else:
pos_ti = _transform_rect(position, rect_ti_r2)
pos_r2 = _transform_rect(position, rect_r2)
if reg_chans is not None:
dcopy = proc.select_channels(dcopy, reg_chans)
# process epoched data into continuous data using the mean
if len(data.data.shape) > 2:
dcopy = Data(np.mean(dcopy.data,
axis=0), [dcopy.axes[-2], dcopy.axes[-1]],
[dcopy.names[-2], dcopy.names[-1]],
[dcopy.units[-2], dcopy.units[-1]])
ax1 = None
# plotting of the data
ax0 = _subplot_timeinterval(dcopy,
position=pos_ti,
epoch=-1,
highlights=highlights,
hcolors=hcolors,
legend=legend)
ax0.xaxis.labelpad = 0
if r_square is not None:
ax1 = _subplot_r_square(r_square, position=pos_r2)
ax0.tick_params(axis='x', direction='in', pad=30 * pos_ti[3])
plt.grid(True)
if r_square is None:
return ax0
else:
return ax0, ax1
def test_select_channels_copy(self):
"""Select channels must not change the original parameter."""
cpy = self.dat.copy()
select_channels(self.dat, ['ca.*'])
self.assertEqual(cpy, self.dat)
def test_select_channels_copy(self):
"""Select channels must not change the original parameter."""
cpy = self.dat.copy()
select_channels(self.dat, ["ca.*"])
self.assertEqual(cpy, self.dat)
def test_select_channels_swapaxis(self):
"""Select channels works with non default chanaxis."""
dat1 = select_channels(swapaxes(self.dat, 0, 1), ["ca.*"], chanaxis=0)
dat1 = swapaxes(dat1, 0, 1)
dat2 = select_channels(self.dat, ["ca.*"])
self.assertEqual(dat1, dat2)
def test_select_channels(self):
"""Selecting channels with an array of regexes."""
channels = self.dat.data.copy()
self.dat = select_channels(self.dat, ["ca.*", "cc1"])
np.testing.assert_array_equal(self.dat.axes[-1], np.array(["ca1", "ca2", "cc1"]))
np.testing.assert_array_equal(self.dat.data, channels[:, np.array([0, 1, -1])])
def test_select_channels_inverse(self):
"""Removing channels with an array of regexes."""
channels = self.dat.data.copy()
self.dat = select_channels(self.dat, ["ca.*", "cc1"], invert=True)
np.testing.assert_array_equal(self.dat.axes[-1], np.array(["cb1", "cb2"]))
np.testing.assert_array_equal(self.dat.data, channels[:, np.array([2, 3])])
def plot_tenten(data, highlights=None, hcolors=None, legend=False, scale=True,
reg_chans=None):
"""Plots channels on a grid system.
Iterates over every channel in the data structure. If the
channelname matches a channel in the tenten-system it will be
plotted in a grid of rectangles. The grid is structured like the
tenten-system itself, but in a simplified manner. The rows, in which
channels appear, are predetermined, the channels are ordered
automatically within their respective row. Areas to highlight can be
specified, those areas will be marked with colors in every
timeinterval plot.
Parameters
----------
data : wyrm.types.Data
Data object containing the data to plot.
highlights : [[int, int)]
List of tuples containing the start point (included) and end
point (excluded) of each area to be highlighted (default: None).
hcolors : [colors], optional
A list of colors to use for the highlight areas (default: None).
legend : Boolean, optional
Flag to switch plotting of the legend on or off (default: True).
scale : Boolean, optional
Flag to switch plotting of a scale in the top right corner of
the grid (default: True)
reg_chans : [regular expressions]
A list of regular expressions. The plot will be limited to those
channels matching the regular expressions.
Returns
-------
[Matplotlib.Axes], Matplotlib.Axes
Returns the plotted timeinterval axes as a list of
Matplotlib.Axes and the plotted scale as a single
Matplotlib.Axes.
Examples
--------
Plotting of all channels within a Data object
>>> plot_tenten(data)
Plotting of all channels with a highlighted area
>>> plot_tenten(data, highlights=[[200, 400]])
Plotting of all channels beginning with 'A'
>>> plot_tenten(data, reg_chans=['A.*'])
"""
dcopy = data.copy()
# this dictionary determines which y-position corresponds with which row in the grid
ordering = {4.0: 0,
3.5: 0,
3.0: 1,
2.5: 2,
2.0: 3,
1.5: 4,
1.0: 5,
0.5: 6,
0.0: 7,
-0.5: 8,
-1.0: 9,
-1.5: 10,
-2.0: 11,
-2.5: 12,
-2.6: 12,
-3.0: 13,
-3.5: 14,
-4.0: 15,
-4.5: 15,
-5.0: 16}
# all the channels with their x- and y-position
system = dict(CHANNEL_10_20)
# create list with 17 empty lists. one for every potential row of channels.
channel_lists = []
for i in range(18):
channel_lists.append([])
if reg_chans is not None:
dcopy = proc.select_channels(dcopy, reg_chans)
# distribute the channels to the lists by their y-position
count = 0
for c in dcopy.axes[-1]:
if c in system:
# entries in channel_lists: [<channel_name>, <x-position>, <position in Data>]
channel_lists[ordering[system[c][1]]].append((c, system[c][0], count))
count += 1
# sort the lists of channels by their x-position
for l in channel_lists:
l.sort(key=lambda c_list: c_list[1])
# calculate the needed dimensions of the grid
columns = list(map(len, channel_lists))
columns = [value for value in columns if value != 0]
# add another axes to the first row for the scale
columns[0] += 1
plt.figure()
grid = calc_centered_grid(columns, hpad=.01, vpad=.01)
# axis used for sharing axes between channels
masterax = None
ax = []
row = 0
k = 0
scale_ax = 0
for l in channel_lists:
if len(l) > 0:
for i in range(len(l)):
ax.append(_subplot_timeinterval(dcopy, grid[k], epoch=-1, highlights=highlights, hcolors=hcolors, labels=False,
legend=legend, channel=l[i][2], shareaxis=masterax))
if masterax is None and len(ax) > 0:
masterax = ax[0]
# hide the axeslabeling
plt.tick_params(axis='both', which='both', labelbottom='off', labeltop='off', labelleft='off',
labelright='off', top='off', right='off')
# at this moment just to show what's what
plt.gca().annotate(l[i][0], (0.05, 0.05), xycoords='axes fraction')
k += 1
if row == 0 and i == len(l)-1:
# this is the last axes in the first row
scale_ax = k
k += 1
row += 1
# plot the scale axes
xtext = dcopy.axes[0][len(dcopy.axes[0])-1]
sc = _subplot_scale(str(xtext) + ' ms', "$\mu$V", position=grid[scale_ax])
return ax, sc
def plot_timeinterval(data, r_square=None, highlights=None, hcolors=None,
legend=True, reg_chans=None, position=None):
"""Plots a simple time interval.
Plots all channels of either continuous data or the mean of epoched
data into a single timeinterval plot.
Parameters
----------
data : wyrm.types.Data
Data object containing the data to plot.
r_square : [values], optional
List containing r_squared values to be plotted beneath the main
plot (default: None).
highlights : [[int, int)]
List of tuples containing the start point (included) and end
point (excluded) of each area to be highlighted (default: None).
hcolors : [colors], optional
A list of colors to use for the highlights areas (default:
None).
legend : Boolean, optional
Flag to switch plotting of the legend on or off (default: True).
reg_chans : [regular expression], optional
A list of regular expressions. The plot will be limited to those
channels matching the regular expressions. (default: None).
position : [x, y, width, height], optional
A Rectangle that limits the plot to its boundaries (default:
None).
Returns
-------
Matplotlib.Axes or (Matplotlib.Axes, Matplotlib.Axes)
The Matplotlib.Axes corresponding to the plotted timeinterval
and, if provided, the Axes corresponding to r_squared values.
Examples
--------
Plots all channels contained in data with a legend.
>>> plot_timeinterval(data)
Same as above, but without the legend.
>>> plot_timeinterval(data, legend=False)
Adds r-square values to the plot.
>>> plot_timeinterval(data, r_square=[values])
Adds a highlighted area to the plot.
>>> plot_timeinterval(data, highlights=[[200, 400]])
To specify the colors of the highlighted areas use 'hcolors'.
>>> plot_timeinterval(data, highlights=[[200, 400]], hcolors=['red'])
"""
dcopy = data.copy()
rect_ti_solo = [.07, .07, .9, .9]
rect_ti_r2 = [.07, .12, .9, .85]
rect_r2 = [.07, .07, .9, .05]
if position is None:
plt.figure()
if r_square is None:
pos_ti = rect_ti_solo
else:
pos_ti = rect_ti_r2
pos_r2 = rect_r2
else:
if r_square is None:
pos_ti = _transform_rect(position, rect_ti_solo)
else:
pos_ti = _transform_rect(position, rect_ti_r2)
pos_r2 = _transform_rect(position, rect_r2)
if reg_chans is not None:
dcopy = proc.select_channels(dcopy, reg_chans)
# process epoched data into continuous data using the mean
if len(data.data.shape) > 2:
dcopy = Data(np.mean(dcopy.data, axis=0), [dcopy.axes[-2], dcopy.axes[-1]],
[dcopy.names[-2], dcopy.names[-1]], [dcopy.units[-2], dcopy.units[-1]])
ax1 = None
# plotting of the data
ax0 = _subplot_timeinterval(dcopy, position=pos_ti, epoch=-1, highlights=highlights,
hcolors=hcolors, legend=legend)
ax0.xaxis.labelpad = 0
if r_square is not None:
ax1 = _subplot_r_square(r_square, position=pos_r2)
ax0.tick_params(axis='x', direction='in', pad=30 * pos_ti[3])
plt.grid(True)
if r_square is None:
return ax0
else:
return ax0, ax1
def test_select_channels_swapaxis(self):
"""Select channels works with non default chanaxis."""
dat1 = select_channels(swapaxes(self.dat, 0, 1), ['ca.*'], chanaxis=0)
dat1 = swapaxes(dat1, 0, 1)
dat2 = select_channels(self.dat, ['ca.*'])
self.assertEqual(dat1, dat2)
def plot_tenten(data,
highlights=None,
hcolors=None,
legend=False,
scale=True,
reg_chans=None):
"""Plots channels on a grid system.
Iterates over every channel in the data structure. If the
channelname matches a channel in the tenten-system it will be
plotted in a grid of rectangles. The grid is structured like the
tenten-system itself, but in a simplified manner. The rows, in which
channels appear, are predetermined, the channels are ordered
automatically within their respective row. Areas to highlight can be
specified, those areas will be marked with colors in every
timeinterval plot.
Parameters
----------
data : wyrm.types.Data
Data object containing the data to plot.
highlights : [[int, int)]
List of tuples containing the start point (included) and end
point (excluded) of each area to be highlighted (default: None).
hcolors : [colors], optional
A list of colors to use for the highlight areas (default: None).
legend : Boolean, optional
Flag to switch plotting of the legend on or off (default: True).
scale : Boolean, optional
Flag to switch plotting of a scale in the top right corner of
the grid (default: True)
reg_chans : [regular expressions]
A list of regular expressions. The plot will be limited to those
channels matching the regular expressions.
Returns
-------
[Matplotlib.Axes], Matplotlib.Axes
Returns the plotted timeinterval axes as a list of
Matplotlib.Axes and the plotted scale as a single
Matplotlib.Axes.
Examples
--------
Plotting of all channels within a Data object
>>> plot_tenten(data)
Plotting of all channels with a highlighted area
>>> plot_tenten(data, highlights=[[200, 400]])
Plotting of all channels beginning with 'A'
>>> plot_tenten(data, reg_chans=['A.*'])
"""
dcopy = data.copy()
# this dictionary determines which y-position corresponds with which row in the grid
ordering = {
4.0: 0,
3.5: 0,
3.0: 1,
2.5: 2,
2.0: 3,
1.5: 4,
1.0: 5,
0.5: 6,
0.0: 7,
-0.5: 8,
-1.0: 9,
-1.5: 10,
-2.0: 11,
-2.5: 12,
-2.6: 12,
-3.0: 13,
-3.5: 14,
-4.0: 15,
-4.5: 15,
-5.0: 16
}
# all the channels with their x- and y-position
system = dict(CHANNEL_10_20)
# create list with 17 empty lists. one for every potential row of channels.
channel_lists = []
for i in range(18):
channel_lists.append([])
if reg_chans is not None:
dcopy = proc.select_channels(dcopy, reg_chans)
# distribute the channels to the lists by their y-position
count = 0
for c in dcopy.axes[-1]:
if c in system:
# entries in channel_lists: [<channel_name>, <x-position>, <position in Data>]
channel_lists[ordering[system[c][1]]].append(
(c, system[c][0], count))
count += 1
# sort the lists of channels by their x-position
for l in channel_lists:
l.sort(key=lambda c_list: c_list[1])
# calculate the needed dimensions of the grid
columns = list(map(len, channel_lists))
columns = [value for value in columns if value != 0]
# add another axes to the first row for the scale
columns[0] += 1
fig = plt.figure()
grid = calc_centered_grid(columns, hpad=.01, vpad=.01)
# axis used for sharing axes between channels
masterax = None
ax = []
row = 0
k = 0
scale_ax = 0
for l in channel_lists:
if len(l) > 0:
for i in range(len(l)):
ax.append(
_subplot_timeinterval(dcopy,
grid[k],
epoch=-1,
highlights=highlights,
hcolors=hcolors,
labels=False,
legend=legend,
channel=l[i][2],
shareaxis=masterax))
if masterax is None and len(ax) > 0:
masterax = ax[0]
# hide the axeslabeling
plt.tick_params(axis='both',
which='both',
labelbottom='off',
labeltop='off',
labelleft='off',
labelright='off',
top='off',
right='off')
# at this moment just to show what's what
plt.gca().annotate(l[i][0], (0.05, 0.05),
xycoords='axes fraction')
k += 1
if row == 0 and i == len(l) - 1:
# this is the last axes in the first row
scale_ax = k
k += 1
row += 1
# plot the scale axes
xtext = dcopy.axes[0][len(dcopy.axes[0]) - 1]
sc = _subplot_scale(fig,
str(xtext) + ' ms',
"$\mu$V",
position=grid[scale_ax])
return ax, sc
def select_sensors(self):
if (self.sensor_names is not None) and (self.sensor_names is not "all"):
self.signal_processor.cnt = select_channels(self.signal_processor.cnt, self.sensor_names)
self.sensor_names = self.signal_processor.cnt.axes[-1]
def run(ex, subject_id, with_breaks, min_freq, only_return_exp):
start_time = time.time()
ex.info['finished'] = False
window_len = 2000
window_stride = 500
marker_def = {
'1- Right Hand': [1],
'2 - Feet': [4],
'3 - Rotation': [8],
'4 - Words': [10]
}
segment_ival = [0, window_len]
n_selected_features = 20 # 20
all_start_marker_vals = [1, 4, 8, 10]
all_end_marker_vals, train_folders, test_folders = get_subject_config(
subject_id)
if with_breaks:
min_break_length_ms = 6000
max_break_length_ms = 8000
break_start_offset_ms = 1000
break_stop_offset_ms = -500
break_start_marker = 300
break_end_marker = 301
all_start_marker_vals.append(break_start_marker)
all_end_marker_vals.append(break_end_marker)
marker_def['5 - Break'] = [break_start_marker]
train_files_list = [
sorted(glob(os.path.join(folder, '*.BBCI.mat')))
for folder in train_folders
]
train_files = list(itertools.chain(*train_files_list))
test_files_list = [
sorted(glob(os.path.join(folder, '*.BBCI.mat')))
for folder in test_folders
]
test_files = list(itertools.chain(*test_files_list))
train_set = MultipleBBCIDataset(train_files)
test_set = MultipleBBCIDataset(test_files)
csp_exp = TwoFileCSPExperiment(train_set,
test_set,
NoCleaner(marker_def=marker_def,
segment_ival=segment_ival),
NoCleaner(marker_def=marker_def,
segment_ival=segment_ival),
resample_fs=250,
standardize_cnt=False,
min_freq=min_freq,
max_freq=34,
last_low_freq=10,
low_width=6,
low_overlap=3,
high_overlap=4,
high_width=8,
filt_order=3,
standardize_filt_cnt=False,
segment_ival=[0, 2000],
standardize_epo=False,
n_folds=None,
n_top_bottom_csp_filters=5,
n_selected_filterbands=None,
forward_steps=2,
backward_steps=1,
stop_when_no_improvement=False,
n_selected_features=n_selected_features,
only_last_fold=True,
restricted_n_trials=None,
common_average_reference=False,
ival_optimizer=None,
shuffle=False,
marker_def=marker_def,
set_cz_to_zero=False,
low_bound=0.)
if only_return_exp:
return csp_exp
log.info("Loading train set...")
csp_exp.load_bbci_set()
log.info("Loading test set...")
csp_exp.load_bbci_test_set()
csp_exp.cnt = select_channels(csp_exp.cnt, ['Cz'], invert=True)
assert len(csp_exp.cnt.axes[1]) == 63
csp_exp.test_cnt = select_channels(csp_exp.test_cnt, ['Cz'], invert=True)
assert len(csp_exp.test_cnt.axes[1]) == 63
if with_breaks:
add_break_start_stop_markers(csp_exp.cnt, all_start_marker_vals,
all_end_marker_vals, min_break_length_ms,
max_break_length_ms,
break_start_offset_ms,
break_stop_offset_ms, break_start_marker,
break_end_marker)
set_windowed_markers(
csp_exp.cnt,
all_start_marker_vals,
all_end_marker_vals,
window_len,
window_stride,
)
if with_breaks:
add_break_start_stop_markers(csp_exp.test_cnt, all_start_marker_vals,
all_end_marker_vals, min_break_length_ms,
max_break_length_ms,
break_start_offset_ms,
break_stop_offset_ms, break_start_marker,
break_end_marker)
set_windowed_markers(
csp_exp.test_cnt,
all_start_marker_vals,
all_end_marker_vals,
window_len,
window_stride,
)
log.info("Cleaning both sets...")
csp_exp.clean_both_sets()
log.info("Preprocessing train set...")
csp_exp.preprocess_set()
log.info("Preprocessing test set...")
csp_exp.preprocess_test_set()
csp_exp.remember_sensor_names()
csp_exp.init_training_vars()
log.info("Running Training...")
csp_exp.run_training()
end_time = time.time()
run_time = end_time - start_time
ex.info['finished'] = True
result = CSPResult(csp_trainer=csp_exp,
parameters={},
training_time=run_time)
assert len(csp_exp.multi_class.test_accuracy) == 1
assert len(csp_exp.multi_class.train_accuracy) == 1
ex.info['train_misclass'] = 1 - csp_exp.multi_class.train_accuracy[0]
ex.info['test_misclass'] = 1 - csp_exp.multi_class.test_accuracy[0]
ex.info['runtime'] = run_time
save_pkl_artifact(ex, result, 'csp_result.pkl')
def select_sensors(self):
if (self.sensor_names is not None) and (self.sensor_names is not 'all'):
self.signal_processor.cnt = select_channels(
self.signal_processor.cnt,
self.sensor_names)
self.sensor_names = self.signal_processor.cnt.axes[-1]
