mne.make_fixed_length_epochs#
- mne.make_fixed_length_epochs(raw, duration=1.0, preload=False, reject_by_annotation=True, proj=True, overlap=0.0, id=1, verbose=None)[source]#
Divide continuous raw data into equal-sized consecutive epochs.
- Parameters:
- rawinstance of
Raw Raw data to divide into segments.
- duration
float Duration of each epoch in seconds. Defaults to 1.
- preloadbool
Load all epochs from disk when creating the object or wait before accessing each epoch (more memory efficient but can be slower).
- reject_by_annotationbool
Whether to reject based on annotations. If
True(default), epochs overlapping with segments whose description begins with'bad'are rejected. IfFalse, no rejection based on annotations is performed.New in v0.21.0.
- projbool | ‘delayed’
Apply SSP projection vectors. If proj is ‘delayed’ and reject is not None the single epochs will be projected before the rejection decision, but used in unprojected state if they are kept. This way deciding which projection vectors are good can be postponed to the evoked stage without resulting in lower epoch counts and without producing results different from early SSP application given comparable parameters. Note that in this case baselining, detrending and temporal decimation will be postponed. If proj is False no projections will be applied which is the recommended value if SSPs are not used for cleaning the data.
New in v0.22.0.
- overlap
float The overlap between epochs, in seconds. Must be
0 <= overlap < duration. Default is 0, i.e., no overlap.New in v0.23.0.
- id
int The id to use (default 1).
New in v0.24.0.
- verbosebool |
str|int|None Control verbosity of the logging output. If
None, use the default verbosity level. See the logging documentation andmne.verbose()for details. Should only be passed as a keyword argument.
- rawinstance of
- Returns:
- epochsinstance of
Epochs Segmented data.
- epochsinstance of
Notes
New in v0.20.
