rmbase#

rmbase(data, frames=0, basevector=0, *, return_mean=False)#

Subtract per-channel baseline means from continuous or epoched data.

Parameters:

data (Any) – Data array shaped (channels, frames * epochs) or (channels, frames, epochs).
frames (int | None) – Samples per epoch. 0 or None uses the full second dimension, matching EEGLAB’s default.
basevector (Any) – EEGLAB-style 1-based baseline frame indices, or 0/ empty for the whole epoch.
return_mean (bool) – When true, return (dataout, datamean).

Returns:

Baseline-corrected data, and optionally the channel-by-epoch means.