[Eeglablist] Error with Measure Projection

Eddins, Ann aeddins at usf.edu
Fri May 15 11:08:41 PDT 2015

Thank you!  That is helpful to know.  I will simplify my design to consider only condition or group comparisons at one time.


From: nimabg at gmail.com [mailto:nimabg at gmail.com] On Behalf Of Nima Bigdely Shamlo
Sent: Friday, May 15, 2015 2:06 AM
To: Makoto Miyakoshi
Cc: Eddins, Ann; eeglablist
Subject: Re: [Eeglablist] Error with Measure Projection

Makoto is right, anything more complex than A-B comparison (either condition or group) can cause MPT to crash since data coming in would be too complex.

On Tue, May 5, 2015 at 10:48 AM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu<mailto:mmiyakoshi at ucsd.edu>> wrote:
Dear Ann,

I included Nima, the developer of the MPT.

I know it fails when you project spectra. I manually turned off the part of scalp map polarity process, which is not necessary to process the spectra anyways. But I did not know that it occurs to ERP projection too. By the way what's the factorial design of your data? I ask this because MPT may not support complex design such as mixed design.


On Thu, Apr 30, 2015 at 1:24 PM, Eddins, Ann <aeddins at usf.edu<mailto:aeddins at usf.edu>> wrote:
I’ve just started working with Measure Projection and keep bumping into an error related to concatenation and the size of the matrices.  It occurs whether I try to project ERP, ERSP or Spec.  I have precomputed both channel and component measures and am wondering if the error is due to a precomputing step that might have reduced the size of my dataset for some subjects/conditions and not others?  The error is as follows:

Inverting ERP component polarities based on scalp map polarities
Error in concatenating condition. Some conditions for certain subjects might be missing.
Dimensions of matrices being concatenated are not consistent.
Undefined variable combinedConditions.

Error in pr.dipoleAndMeasureOfStudyErp (line 101)
                    icCombinedErp = cat(2, combinedConditions{:});

Error in create_mpt_submenu>command_measure_project (line 64)
        STUDY.measureProjection.(measureName).object = pr.dipoleAndMeasureOfStudyErp(STUDY, ALLEEG);
Error while evaluating uimenu CallbackDoes it matter what pre-processing steps have been completed?

Any suggestions would be welcome!


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

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