[Mne_analysis] ECG artifacts

[Mainak Jas]

        External Email - Use Caution        

Hi Siobhan -- no clue. If you can share your data along with a script that
is no longer than 15 lines, I could perhaps try to help debug. It's hard to
guess what could have gone wrong from two lines of code.

Mainak

On Wed, Jan 22, 2020 at 5:24 AM Siobhan O'Brien <sob832 at uowmail.edu.au>
wrote:

>         External Email - Use Caution
>
> Thanks Mainak,
>
>
>
> Sorry I probably should have shown the code I was using. Below is the code
> I am using - I do specify the channel accordingly. I have had a play around
> with the different options in plot_image… and I get exactly the same graph
> when I remove combine = ’mean’ and have no inputs to plot_image.
>
>
>
> ecg_epochs = mne.preprocessing.create_ecg_epochs(eeg_data, event_id=999,
> ch_name = 'EKG')
>
> ecg_epochs.plot_image(combine='mean')
>
>
>
> Is there anything else you think it could be?
>
>
>
> Thanks for your help!
>
> Siobhan
>
>
>
> *From:* mne_analysis-bounces at nmr.mgh.harvard.edu <
> mne_analysis-bounces at nmr.mgh.harvard.edu> *On Behalf Of *Mainak Jas
> *Sent:* Tuesday, 21 January 2020 6:19 PM
> *To:* Discussion and support forum for the users of MNE Software <
> mne_analysis at nmr.mgh.harvard.edu>
> *Subject:* Re: [Mne_analysis] ECG artifacts
>
>
>
> *        External Email - Use Caution        *
>
> It doesn’t look like the ECG channel is being used because in the log it
> says:
>
> ‘combining channels using “mean”‘
>
> You can use the ch_name argument to provide the channel or alternatively
> set the channel type using raw.set_channel_types
>
> Mainak
>
>
>
> On Tue, Jan 21, 2020 at 7:08 AM Siobhan O'Brien <sob832 at uowmail.edu.au>
> wrote:
>
> *        External Email - Use Caution        *
>
> Hi All,
>
>
>
> I am new to MNE and am having some issues with identifying ECG artifacts,
> I have gone through the relevant tutorials and examples, but when I run the
> code the ‘ecg_epochs’ image does not look how I would expect it to. I am
> using the mne.preprocessing.create_ecg_epochs function. Please see the
> image below. I have also tried the mne.preprocessing.find_ecg_events
> functions to no avail
>
> Can anyone please point me to what I am doing incorrectly! I have checked
> the ECG channel, and it has very well defined PQRS waves, so I don’t think
> it is an issue with that channel.
>
>
>
> Thanks,
>
> Siobhan O’Brien
>
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