mne.preprocessing.eyetracking.interpolate_blinks#
- mne.preprocessing.eyetracking.interpolate_blinks(raw, buffer=0.05, match='BAD_blink', interpolate_gaze=False)[source]#
Interpolate eyetracking signals during blinks.
This function uses the timing of blink annotations to estimate missing data. Missing values are then interpolated linearly. Operates in place.
- Parameters:
- rawinstance of
Raw The raw data with at least one
'pupil'or'eyegaze'channel.- buffer
float| array_like offloat, shape(2,)) The time in seconds before and after a blink to consider invalid and include in the segment to be interpolated over. Default is
0.05seconds (50 ms). If array-like, the first element is the time before the blink and the second element is the time after the blink to consider invalid, for example,(0.025, .1).- match
str|listofstr The description of annotations to interpolate over. If a list, the data within all annotations that match any of the strings in the list will be interpolated over. If a
matchstarts with'BAD_', that part will be removed from the annotation description after interpolation. Defaults to'BAD_blink'.- interpolate_gazebool
If False, only apply interpolation to
'pupil channels'. If True, interpolate over'eyegaze'channels as well. Defaults to False, because eye position can change in unpredictable ways during blinks.
- rawinstance of
- Returns:
- selfinstance of
Raw Returns the modified instance.
- selfinstance of
Notes
New in v1.5.
