[Mne_analysis] Issue with tfce

[Fleur GAUDFERNAU]

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Dear mne community,

I'm doing 1 sample permutation cluster t-tests (two tailed) between 2 conditions.

Most of the values in my array data (difference between conditions) are negative, hence I'm expecting negative T values (which is what I get when I'm not using tfce). However, when using tfce, the test returns only positive T values. Is there a way to overcome this issue?

Thanks in advance,

Fleur
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