[Eeglablist] Problem with STUDY - Precompute channel measures

[Andrea Pavan]

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!EmJLtKizl9aTYl-OZgfRzMhMoOX304kMnkwB2bNMTtsPX_RAd8Rt0NOU4QXNtUywf4uQrKueFYqzpzYuK8q-snDIh2VtaNs$ 


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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