<div dir="ltr"><div><div><div><div><div><div>I added add_eeg_ref=False in read_raw_fif and then used raw.set_channel_types.<br></div>It works well and after filtering my ECG channel it's way nicer.<br></div>It still doesn't look like a classical ECG and no correlation is found when I do the ICA<br></div>(but it's ok for EOG).<br></div>I will have to remove components correlated to ECG manually.<br><br></div>Thanks for your help,<br><br></div>Benoît<br></div><div class="gmail_extra"><br><div class="gmail_quote">2016-08-04 11:35 GMT+02:00 Alexandre Gramfort <span dir="ltr"><<a href="mailto:alexandre.gramfort@telecom-paristech.fr" target="_blank">alexandre.gramfort@telecom-paristech.fr</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">> Thanks for your answer,<br>
> but actually it returns an error:<br>
> " File<br>
> "/home/bm243969/anaconda2/lib/<wbr>python2.7/site-packages/mne/<wbr>channels/channels.py",<br>
> line 196, in _check_set<br>
> % (ch['ch_name'], proj['desc']))<br>
><br>
> RuntimeError: Cannot change channel type for channel EEG061 in projector<br>
> "Average EEG reference"<br>
<br>
</span>the EEG average ref proj has already been applied to your data. Use proj=False<br>
somewhere or add_eeg_ref=False in read_raw_fif.<br>
<br>
HTH<br>
Alex<br>
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