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

[Schneider, Julie]

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

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