[Eeglablist] Bug in pop_select?

[Delorme, Arnaud]

Yes, one constraint is that EEGLAB remove events which are not associated with any data points. So if your time locking event is not associated with any sample (data from epochs from -6 to -2 seconds will not contain samples at latency 0), EEGLAB is confused.

The way around this is to define new events at latency -2, then use the epoching function to extract latencies from -4 to 0.

Best wishes,

Arno

> On Jul 30, 2020, at 9:06 AM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:
> 
> Dear Fernando,
> 
> Thank you for reporting a potential bug.
> I wonder if you are so kind to register your finding in the bug report list.
> https://urldefense.com/v3/__https://github.com/sccn/eeglab/issues__;!!Mih3wA!VS0RrTZ-Sl-2GapOMh92efyPEsvP6MBICYLX3zS2xTa264niyQFaqA9DsPHkfMRD7BofiA$ 
> 
> I have never tried [-6 -2] but I do see that one may need to do like that
> depending on the event structure.
> I hope you also have another event at '-2' latency so that you can re-epoch
> your data to that event so that you can avoid this issue.
> 
> Makoto
> 
> On Tue, Jul 21, 2020 at 9:11 AM Fernando Valle-Inclán <
> fvalleinclan at gmail.com> wrote:
> 
>> Hi everyone,
>>         I came across what seems to be a bug. I have epochs from -12 to 1
>> s. When I select a time window including the 0 point (e.g., EEG =
>> pop_select( EEG, 'time', [-6, -0] ), it works. However, when the time
>> window does not include the 0 point (e.g., EEG = pop_select( EEG, 'time',
>> [-6, -2] ), the resulting EEG structure contains only one epoch. Am I doing
>> something wrong
>> Thanks
>> Fernando
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