[Eeglablist] pop_rejcont bugs

Arnaud Delorme arno at ucsd.edu
Fri Apr 19 10:28:31 PDT 2019


Dear Tasha,

That sounds strange. Would you mind to 
1. Download the latest EEGLAB https://github.com/sccn/eeglab
2. Remove all EEGLAB from your path
3. Add the new version and start it
4. Load the dataset that causes problem
5. Apply pop_rejcont form the GUI to reproduce the problem
6. Make a video of your screen for steps 3 to 5
7. Send us the video and your dataset at eeglab at sccn.ucsd.edu

Cheers,

Arno

> On Apr 18, 2019, at 5:43 AM, Natalie Tasha Poppa <npoppa at usc.edu> wrote:
> 
> PS
> 
> I did make a silly coding error. The GUI issue remains, but there do not
> seem to be any issues when running pop_rejcont from the command line.
> 
> Best,
> 
> Tasha
> 
> On Wed, Apr 17, 2019 at 3:34 PM Natalie "Tasha" Poppa <npoppa at usc.edu>
> wrote:
> 
>> Greetings,
>> 
>> I am using EEGLAB version 14.1.2 with MATLAB 2016b on a Mac. I find a few
>> issues with the pop_rejcont function.
>> 
>> First, from the GUI pop_rejcont will remove any pre-existing event markers
>> and replace them only with boundary markers.
>> I found that someone had described a similar issue in 2014:
>> https://sccn.ucsd.edu/pipermail/eeglablist/2014/008717.html
>> 
>> Second, from the command line, I do not have this event-marker deletion
>> issue, but pop_rejcont doesn't actually remove the bad segments that it
>> identifies either. The function will run apparently as normal, and list the
>> number of bad segments for removal in the command window, etc. but then
>> doesn't actually remove them, even though a new dataset is created (i.e., I
>> end up with the same number of trials and visual inspection of the data
>> shows obviously bad segments remain).
>> 
>> Under different circumstances I would just use pop_rejepochs to clean bad
>> segments, but this is not a good solution for my particular analysis
>> because my epochs are 1 second and ICA must be applied to these data.
>> 
>> If there is no quick solution to the pop_rejcont issue, can anyone tell me
>> if it would be possible to epoch the data for cleaning, then un-epoch it
>> prior to ICA (and how)? I tried to figure this out but did not have success.
>> 
>> Thank you!
>> 
>> -Tasha
>> 
>> 
>> Tasha Poppa
>> Doctoral Student
>> Psychology - Brain and Cognitive Sciences
>> University of Southern California
>> 
> 
> 
> -- 
> Tasha Poppa
> Doctoral Student
> Psychology - Brain and Cognitive Sciences
> University of Southern California
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