[Eeglablist] Problem with STUDY - Precompute channel measures

[Cedric Cannard]

Ok. Can you describe your preprocessing steps? 
Did you epoch the data? 
Did you load the files to study and create a study design? 

Cedric



------- Original Message -------
On Thursday, December 15th, 2022 at 12:17 PM, Andrea Pavan <andrea.pavan2 at unibo.it> wrote:


> Hi there,
> 
> Thank you for your email. I had the problem when computing ERPs. After having created the STUDY, it could not precompute ERP measures. This was true using both script and GUI.
> 
> Best regards,
> Andrea
> 
> 
> 
> -----Original Message-----
> From:
> 
> Cedric
> 
> 
> Cannard ccannard at protonmail.com
> 
> Sent: 15 December 2022 18:13
> To: Samuel Armstrong samuel.armstrong at uq.edu.au; Arnaud Delorme arnodelorme at gmail.com
> 
> Cc: Andrea Pavan andrea.pavan2 at unibo.it; eeglablist at sccn.ucsd.edu
> 
> Subject: Re: [Eeglablist] Problem with STUDY - Precompute channel measures
> 
> Hi,
> 
> Can you be more specific? Which measure and which parameters? ERP (removing baseline or not), Power spectra (FFT, PSD), etc. I remember having a similar issue recently when trying to compute PSD but no when selecting FFT.
> 
> Maybe Arno can give some feedback. Otherwise, you can submit an issue on github: https://urldefense.com/v3/__https://github.com/sccn/eeglab/issues__;!!Mih3wA!DNFKcQmyGV_wkQQt0A2AvH1w2QpOkfclDWT1pEpfCa_ntXsn7aPkERNRxToq50__rieG9lTXpIAyuqSxIaEFeokR4A$ 
> 
> 
> Cedric
> 
> 
> 
> ------- Original Message -------
> On Tuesday, December 13th, 2022 at 6:59 PM, Samuel Armstrong samuel.armstrong at uq.edu.au wrote:
> 
> 
> 
> > Hi all,
> > 
> > Just wanted to bump the below message from Andrea and confirm that I am having this issue as well (i.e., precomputing channel measures gets stuck for hours, even when attempting to test the input parameters). Was something changed in the update to EEGlab 2022.1?
> > 
> > Sam
> > 
> > --
> > Sam Armstrong
> > M +614 24 449 609
> > E samuel.armstrong at uq.edu.au mailto:samuel.armstrong at uq.edu.au
> > 
> > On 5/12/2022, 11:38 pm, "eeglablist on behalf of Andrea Pavan" <eeglablist-bounces at sccn.ucsd.edu mailto:eeglablist-bounces at sccn.ucsd.edu on behalf of andrea.pavan2 at unibo.it mailto:andrea.pavan2 at unibo.it> wrote:
> > 
> > Dear EEGLAB community,
> > 
> > For my experiment I want to use LIMO but I am having problems with precomputing ERPs channel measures from STUDY. Each participant (N=30) performed the experiment in 2 separate sessions. After epoching, I merged the two files for LIMO but, in some ways, this is causing problems to STUDY. Unfortunately, I don't get any error from Matlab to report, but when I precompute channel measures (erp) it gets stuck for hours. I've tried even using just 2 or 3 participants and it does the same. I was wondering whether there is something wrong with my epoched and merged files. I am not sure if any of you has experienced some like this. I'm more than happy to share few .set files if necessary.
> > 
> > I'm using Matlab 2022b, EEGLAB v.2022.1, Matlab parallel toolbox is also installed.
> > 
> > Please, let me know your thoughts.
> > 
> > Many thanks,
> > Andrea
> > 
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