# mne.combine_evoked¶

mne.combine_evoked(all_evoked, weights)[source]

Merge evoked data by weighted addition or subtraction.

Data should have the same channels and the same time instants. Subtraction can be performed by calling combine_evoked([evoked1, -evoked2], 'equal')

Warning

If you provide an array of weights instead of using ‘equal’ or ‘nave’, strange things may happen with your resulting signal amplitude and/or nave attribute.

Parameters
all_evoked

The evoked datasets.

weights

The weights to apply to the data of each evoked instance. Can also be 'nave' to weight according to evoked.nave, or "equal" to use equal weighting (each weighted as 1/N).

Returns
evokedEvoked

The new evoked data.

Notes

New in version 0.9.0.