def request_window_stream(self, window_spec=None, nullmarker_stride_ms=1000, no_overlap=True):
# load windower spec file
if window_spec is None:
window_definitions = WindowFactory.default_windower_spec()
no_overlap = True
self.logger.info("Using default windower spec %s" % window_definitions)
else:
windower_spec_file = open(window_spec, 'r')
window_definitions = \
WindowFactory.window_definitions_from_yaml(windower_spec_file)
windower_spec_file.close()
self.logger.info(str("Finished loading windower spec file from %s" % window_spec))
if nullmarker_stride_ms != window_definitions[0].endoffsetms:
warnings.warn("defined nullmarker stride (%d) is different from "
"endoffset (%d) in window-definitions[0]!" %
(nullmarker_stride_ms, window_definitions[0].endoffsetms))
eeg_client = self.setup_client()
# create windower
self.marker_windower = MarkerWindower(eeg_client,
window_definitions,
nullmarker_stride_ms=nullmarker_stride_ms,
no_overlap = no_overlap)
self.logger.info( "Created windower instance")
# return an iterator over the yielded windows
window_stream = ((sample, label) for (sample, label) in self.marker_windower)
self.logger.info( "Created window-stream")
return window_stream
def __init__(self,
windower_spec_file=None,
local_window_conf=False,
nullmarker_stride_ms=1000,
no_overlap=False,
continuous=False,
data_consistency_check=False,
**kwargs):
super(Stream2TimeSeriesSourceNode, self).__init__(**kwargs)
assert not(nullmarker_stride_ms is None and windower_spec_file is None),\
"No segmentation parameters specified!"
if windower_spec_file is None:
no_overlap = True
continuous = True
wdefs = WindowFactory.default_windower_spec(
endoffsetms=nullmarker_stride_ms)
else:
wdefs = Windower._load_window_spec(windower_spec_file,
local_window_conf)
self.set_permanent_attributes(
window_definition=wdefs,
nullmarker_stride_ms=nullmarker_stride_ms,
no_overlap=no_overlap,
data_consistency_check=data_consistency_check,
dataset=None,
continuous=continuous)
def __init__(self, windower_spec_file=None, local_window_conf=False,
nullmarker_stride_ms=1000, no_overlap=False,
continuous=False,
data_consistency_check=False, **kwargs):
super(Stream2TimeSeriesSourceNode, self).__init__(**kwargs)
assert not(nullmarker_stride_ms is None and windower_spec_file is None),\
"No segmentation parameters specified!"
if windower_spec_file is None:
no_overlap = True
continuous = True
wdefs = WindowFactory.default_windower_spec(
endoffsetms=nullmarker_stride_ms)
else:
wdefs = Windower._load_window_spec(windower_spec_file,
local_window_conf)
self.set_permanent_attributes(
window_definition=wdefs,
nullmarker_stride_ms=nullmarker_stride_ms,
no_overlap=no_overlap,
data_consistency_check=data_consistency_check,
dataset=None,
continuous=continuous)
def request_window_stream(self, window_spec=None, nullmarker_stride_ms=1000, no_overlap=True):
# load windower spec file
if window_spec is None:
window_definitions = WindowFactory.default_windower_spec()
no_overlap = True
self.logger.info("Using default windower spec %s" % window_definitions)
else:
windower_spec_file = open(window_spec, 'r')
window_definitions = \
WindowFactory.window_definitions_from_yaml(windower_spec_file)
windower_spec_file.close()
self.logger.info(str("Finished loading windower spec file from %s" % window_spec))
if nullmarker_stride_ms != window_definitions[0].endoffsetms:
warnings.warn("defined nullmarker stride (%d) is different from "
"endoffset (%d) in window-definitions[0]!" %
(nullmarker_stride_ms, window_definitions[0].endoffsetms))
eeg_client = self.setup_client()
# create windower
self.marker_windower = MarkerWindower(eeg_client,
window_definitions,
nullmarker_stride_ms=nullmarker_stride_ms,
no_overlap = no_overlap)
self.logger.info( "Created windower instance")
# return an iterator over the yielded windows
window_stream = ((sample, label) for (sample, label) in self.marker_windower)
self.logger.info( "Created window-stream")
return window_stream
