[Eeglablist] identifying previously interpolated channels across dataset?

[Kavanaugh, Brian]

Hi Komal and the list, I realized my EEG.chanlocs structure was being
overwritten in the loop. I added an extra line after rejecting channels but
before channels to explicitly save that info into the EEG structure
EEG.etc.removedchannels = EEG.chanlocs . Maybe you need an extra line in
your script to save the chanlocs after removing channels so that it doesn't
get overwritten later in your loop. brian

On Fri, Oct 11, 2024 at 9:21 AM Komal Komal <komal.komal at postgrad.wit.ie>
wrote:

> Hi Kavanaugh,
>
> I hope you're doing well.
>
> I'm facing a similar challenge to what you've described regarding channel
> interpolation. In my case, I'm using the NEAR toolbox to identify and
> remove bad channels. However, when I try to interpolate these removed
> channels later, I don’t find any history of the removed channels.
>
> From what I understand, it seems necessary to save the data before
> removing the bad channels in order to reference the earlier dataset for
> interpolation. Alternatively, I’m wondering if we can directly interpolate
> the identified bad channels without removing them. If this is possible, it
> raises the question of what the "Select from removed channels" option in
> EEGLAB's GUI is meant for. I may be overlooking something here.
>
> This is just my understanding based on my limited experience, and I’d
> really appreciate any insights or guidance from you and the EEGLAB
> community.
>
> Looking forward to hearing from you all.
>
> Best regards,
> Komal
>
> On Thu, 10 Oct 2024 at 18:12, Kavanaugh, Brian via eeglablist <
> eeglablist at sccn.ucsd.edu> wrote:
>
>> Hi everyone,
>>
>> I'm struggling to find information on rejected/interpolated channels
>> within
>> the EEG structure for previously pre-processed files.
>>
>> I used pop_clean_rawdata for removal and pop_interp for interpolation. but
>> can't find anything.
>>
>> Is this stored somewhere or perhaps gone?
>>
>> thanks!
>>
>> brian
>>
>> Brian Kavanaugh, PsyD, ABPP
>>
>> Board Certified Pediatric Neuropsychologist, E. P. Bradley Hospital
>>
>> Assistant Professor, Warren Alpert Medical School of Brown University
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>