[Eeglablist] pre-clustering problems

[Arnaud Delorme]

Hi Makoto and Fernanda,

For some reason, your base cluster does not contain all the datasets. In your case, the following statement is true

length(unique_bc(STUDY.cluster(1).sets(:))) < length(STUDY.datasetinfo)

Try reinitializing the base cluster by calling menu item “STUDY > Edit STUDY info” and checking the box to delete clustering information or from the command line

STUDY.cluster = [];
STUDY = stc_checkset(STUDY, ALLEEG);

Then again check if the statement above is true (length(unique_bc(STUDY.cluster(1).sets(:))) < length(STUDY.datasetinfo))

In the STUDY design (screen capture you sent), I would select the first indep. variable as “group”. There is no reason for it to be the second indep. var. since the first one is not selected. This should not change anything though. Try also to create a second design where you do not select any independent variable just in case.

Hope this helps,

Arno

> On Sep 2, 2015, at 5:54 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:
> 
> Dear Arno,
> 
> I really have no idea how this can happen. Does her report ring a bell?
> 
> Makoto
> 
> On Sat, Aug 22, 2015 at 10:19 AM, Fernanda Pérez Gay Juárez <fernandapgj at gmail.com <mailto:fernandapgj at gmail.com>> wrote:
> Hello, Makoto
> 
> My MATLAB version is R2015a and I'm using EEGLAB 13_4_4b. All of the subjects have EEG data (clearly), I didn't run ICA independently on each one of them but ran the ICA on the whole StudySet.
> 
> Thanks beforehand for any help you can provide me with!
> 
> Fernanda
> 
> 
> 
> 2015-08-21 19:21 GMT-04:00 Makoto Miyakoshi <mmiyakoshi at ucsd.edu <mailto:mmiyakoshi at ucsd.edu>>:
> Dear Fernanda,
> 
> Sorry for inconvenience.
> As you may have thought, this can't happen since you are using a between-subject condition only (unless some of the subjects do not have EEG data).
> 
> Just to double check--what's the version of your Matlab and EEGLAB?
> 
> Makoto
> 
> On Thu, Aug 20, 2015 at 10:21 AM, Fernanda Pérez Gay Juárez <fernandapgj at gmail.com <mailto:fernandapgj at gmail.com>> wrote:
> 
> Hello. I'm trying to run the PCA on a Study of 10 datasets, in which I compare 2 groups of 5 subjects each.
> 
> When I intend to build the pre.clustering matrix, and I select spectra and ERPs (without changing any further settings) I get the following error:
> 
> std_preclust (line 260) error
> 
> "Some datasets not included in preclustering because of partial STUDY design. You need to use a STUDY design that includes all datasets.,
> 
> (Error occurred in function std_preclust() at line 260)."
> 
> My study design has 10 subjects selected, no independent variable 1 and "group" as independent variable 2. There are 2 groups, "L" (for Learners) and "NL" (for Non-Learners).
> 
> What should I change to be able to pre-cluster?
> 
> I attached a screenshot of the Study Design.
> 
> Thanks,
> 
> Fernanda Pérez Gay, MD
> PhD Candidate
> Integrated Program in Neuroscience
> McGill University
> 
> 
> 
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> 
> 
> -- 
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
> 
> 
> 
> 
> -- 
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego

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