[Eeglablist] Error while rejecting continuous data (eeglab 14)

[Rafał Jończyk]

Dear Nicholas and Zahra,

thank you for your feedback. I thought that the problem might lie in the
numeric/string nature of events. I am a bit confused, though, because
eeglab gave me a warning message a few times saying "converting all event
types to strings" -- could it be that the conversion didn't work? Also do
you know if there is a way to run such a conversion manually without doing
any harm to the event structure? In other words -- is there an unambiguous
and safe way to convert the numeric event types to string event types?

Best,
Rafal


2017-04-13 14:31 GMT+02:00 zahra fotovatnia <fotovatnia at yahoo.com>:

> Hi Rafal,
>
> Yes. I found the same problem when using cleaning continuous data. The
> point is I was trying to do difference waves on erplab after analyzing
> continuous data on eeglab but I repeatedly found the error of missing data.
> I tried different options but the same error. ASR deleted the events while
> cleaning.
>
> Best
> Zahra
>
>
>
>
> On Thursday, 13 April 2017, 2:45, Rafał Jończyk <rafal.jonczyk at gmail.com>
> wrote:
>
>
> Thank you Tarik for advice. I will have a go at your suggestions. I think
> there might be something with the latest version of eeglab given that I
> have never experienced such problems in previous versions, and it's not the
> first time that I am analyzing *cnt files from neuroscan in eeglab.
>
> Has anyone else experienced a similar problem?
>
> Best,
> Rafał
>
> 2017-04-12 3:10 GMT+02:00 Tarik S Bel-Bahar <tarikbelbahar at gmail.com>:
>
> Hello Rafal, a few notes below that may help, all the best!
>
> ****************************** **
> Yes you could try just changing the format of all the events by looping
> through them and rewriting them.
> It may not be about the numeric format, it may be how they are read and/or
> stored (cell vs. strong array, or something basic like that).
> See also addnewevents function mentioned on list previously, and some
> related messages,
> which may allow you to write in new events that are accepted by eeglab.
> However, this may be problem with new build as you're seeing, thus a
> bugzilla note would be cool when you have a chance.
> Another thing to check is if the same thing happens with the eeglab
> tutorial data too,
> which would be telling if there's something unique about your data and/or
> it's event structure.
>
>
>
>
> On Tue, Apr 11, 2017 at 10:37 AM, Rafał Jończyk <rafal.jonczyk at gmail.com>
> wrote:
>
> Dear eeglablist community,
>
> I have experienced some problems with event structure -- that's my guess
> -- when rejecting fragments of continuous data (raw *.cnt files resampled
> to 250Hz & filtered) in the latest version of eeglab. Interestingly, this
> does not happen when I am using eeglab 13.6.5b on the same computer. Note
> that I am not rejecting the onset of the data.
>
> The error:
>
> eeg_insertbound(): 3 boundary (break) events added.
> eeg_insertbound(): 3 boundary (break) events added.
> Warning: converting all event types to strings
> BUG 1971 WARNING: IF YOU ARE USING A SCRIPT WITTEN FOR A PREVIOUS VERSION
> OF
> EEGLAB TO CALL THIS FUNCTION, BECAUSE YOU ARE REJECTING THE ONSET OF THE
> DATA,
> EVENTS WERE CORRUPTED. EVENT LATENCIES ARE NOW CORRECT (SEE https://sccn.ucsd.edu/wiki/EEG
> LAB_bug1971 <https://sccn.ucsd.edu/wiki/EEGLAB_bug1971>);
>
> Error using cell/strmatch (line 19)
> Requires character array or cell array of strings as inputs.
>
> Error in eeg_eegrej (line 147)
>     indBound2 = strmatch('boundary', { event2(:).type });
> Error while evaluating DestroyedObject Callback
>
>
> Could you give me a hint how to resolve the problem and continue working
> with the latest version of eeglab? Is it because my events are numeric?
>
> Best,
> Rafał
>
> --
> Rafał Jończyk
> Assistant Professor
> Faculty of English
> Adam Mickiewicz University, Poznań | Poland
>
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>
>
> --
> Rafał Jończyk
> Assistant Professor
> Faculty of English
> Adam Mickiewicz University, Poznań | Poland
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-- 
Rafał Jończyk
Assistant Professor
Faculty of English
Adam Mickiewicz University, Poznań | Poland
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