[Eeglablist] Error when precomputing channel measures for between subjects study design

[Schneider, Julie]

Hi Makoto,


Thank you very much for your kind response and I will move forward with filing this problem as a bug.


Best Regards,

Julie

________________________________
From: Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
Sent: Wednesday, April 20, 2016 10:15:58 PM
To: alyson.abel at mail.sdsu.edu; Schneider, Julie
Cc: EEGLAB List
Subject: Re: [Eeglablist] Error when precomputing channel measures for between subjects study design

Dear Julie and Alyson,

Sorry for getting back to you late Julie. I thought I've responded to you but I did not.
I talked to a developer and confirmed that this particular problem is not filed yet. He did mention that there was potentially related one filed already, but he was not sure about the relevance. I feel terribly sorry but could you please file the problem here? You can basically copy and paste what you have described in the email.
https://sccn.ucsd.edu/bugzilla/enter_bug.cgi
I deeply appreciate your patience and cooperation.

Makoto

On Wed, Apr 13, 2016 at 11:18 AM, Alyson Abel <amills at mail.sdsu.edu<mailto:amills at mail.sdsu.edu>> wrote:
I actually have been having this same issue. I am trying to run a 2 group x 6 condition study. All datasets look fine (and all have 64 channels) when I load them but I get the same error as reported by Julie "Datasets to be concatenated do not have the same number of channels" . I am using MATLAB R2014a and the latest EEGLAB.

Thank you for any feedback on this issue,
Alyson



Re: [Eeglablist] Error when precomputing channel measures for between subjects study design
Dear Julie,

If I remember correctly, the cause of this (or related) problem must have identified and fixed. Let me confirm it and get back to you.

Makoto

On Fri, Apr 1, 2016 at 9:45 AM, Schneider, Julie <jxs114631 at utdallas.edu<mailto:jxs114631 at utdallas.edu>> wrote:

Hello,


I have been consistently receiving the error "Datasets to be concatenated do not have the same number of channels" during precomputing of channel measures.  I am facing a similar situation as mentioned in the thread: http://sccn.ucsd.edu/pipermail/eeglablist/2015/009848.html in that when manually checking each dataset, they appear to have 64 channels each.


However, when I tried using Makoto's recommendations to resolve this issue (which were greatly appreciated!) the download of a new EEGlab was only temporarily helpful, and the interpolation process remained necessary.  I have found that, across every study, this issue only exists when trying to compare GROUPS (between subjects design).  When running a within subjects study design, using the exact same data (i.e. same channel numbers) I have no issues.  How could I be using the same data and have it successfully precompute within subjects but suddenly have an inconsistent number of channels when precomputing between subjects?  Any recommendations are greatly appreciated!


Thank you in advance for your help!

Julie


Julie M. Schneider, M.S.

Doctoral Student

The Developmental Neurolinguistics Lab

Brain and Behavioral Sciences, University of Texas at Dallas

---
Alyson D. Abel, Ph.D.
Assistant Professor, School of Speech, Language and Hearing Sciences
San Diego State University
5500 Campanile Dr., Rm 227
San Diego, CA 92182
alyson.abel at mail.sdsu.edu<mailto:alyson.abel at mail.sdsu.edu>
Office phone: (619) 594-4694<tel:%28619%29%20594-4694>

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--
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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