[FieldTrip] fieldtrip Digest, Vol 127, Issue 9

[Richard Cui]

Hi Philip,

I think EEG.srate is the sampling rate of the signal, which is ‘fsample’ (2048) in your struct.  I guess you should set dat.Fs = fsample in your code.

-Richard

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> Message: 2
> Date: Tue, 8 Jun 2021 18:28:38 +0200
> From: philip Joadavi <p.joadavi at gmail.com>
> To: FieldTrip discussion list <fieldtrip at science.ru.nl>
> Subject: [FieldTrip] fieldtrip2eeglab
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> Hi all,
> 
> I would like to use AMICA (an ICA algorithm ) on my data. Unfortunatelly,
> FieldTrip doe not support AMICA (as far as I know ) and I would like to use
> EEGLAB for that.
> 
> I'm using fieldtrip2eeglab function to convert my data to EEGLAB, however,
> I get multiple errors.
> 
> my fieldtrip data is a structure with :
> 
> struct with fields:
> 
>           hdr: [1×1 struct]
>         trial: {[163×85724 double]}
>       fsample: 2048
>    sampleinfo: [1 85724]
>          time: {[1×85724 double]}
>         label: {163×1 cell}
>          elec: [1×1 struct]
> 
> I used the function as => fieldtrip2eeglab(data{1, 1}.hdr , data{1, 1} )
> and tried also fieldtrip2eeglab(data{1, 1}.hdr , data{1, 1}.trial )
> I get an error
> Reference to non-existent field 'Fs'.
> Error in pop_fileio (line 199)
> EEG.srate           = dat.Fs;
> 
> I would appreciate if you can help me with that.
> 
> Philip
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> Message: 3
> Date: Tue, 8 Jun 2021 07:03:37 -1000
> From: Arnaud Delorme <arnodelorme at gmail.com>
> Cc: FieldTrip discussion list <fieldtrip at science.ru.nl>, philip
> 	Joadavi <p.joadavi at gmail.com>
> Subject: Re: [FieldTrip] fieldtrip2eeglab
> Message-ID: <44BE4CAD-0B15-4BB0-8C28-834731238680 at gmail.com>
> Content-Type: text/plain;	charset=utf-8
> 
> The best way to convert Fieldtrip data to EEGLAB is to use the pop_fileio function.
> 
> EEG = pop_fileio(hdr, dat, events);
> 
> As described on this page.
> 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__eeglab.org_others_EEGLAB-5Fand-5FFieldtrip.html&d=DwIDaQ&c=-35OiAkTchMrZOngvJPOeA&r=q2b2jk6iMqHvTzFUUrmWpFcLBpvSfdmimXkepsdyNwg&m=Y4MtTwnPkCs49uQY1SwgdVpHZb6SofG4hViaPydGiMc&s=JwQkZc27Vjm3jOvAkVfRW6l4a0PayRWUtPMMLdwt4vc&e= 
> 
> Note that this is what the fieldtrip2eeglab.m is using as well although you might be using an obsolete version.
> Best wishes,
> 
> Arno
> 
>> On Jun 8, 2021, at 7:01 AM, Delorme, Arnaud <adelorme at ucsd.edu> wrote:
>> 
>> The best way to convert Fieldtrip data to EEGLAB is to use the pop_fileio function.
>> 
>> EEG = pop_fileio(hdr, dat, events);
>> 
>> As described on this page.
>> 
>> https://eeglab.org/others/EEGLAB_and_Fieldtrip.html
>> 
>> Note that this is what the fieldtrip2eeglab.m is using as well although you might be using an obsolete version.
>> Best wishes,
>> 
>> Arno
>> 
>>> On Jun 8, 2021, at 6:28 AM, philip Joadavi via fieldtrip <fieldtrip at science.ru.nl> wrote:
>>> 
>>> Hi all,
>>> 
>>> I would like to use AMICA (an ICA algorithm ) on my data. Unfortunatelly, FieldTrip doe not support AMICA (as far as I know ) and I would like to use EEGLAB for that. 
>>> 
>>> I'm using fieldtrip2eeglab function to convert my data to EEGLAB, however, I get multiple errors.
>>> 
>>> my fieldtrip data is a structure with :
>>> 
>>> struct with fields:
>>> 
>>>          hdr: [1×1 struct]
>>>        trial: {[163×85724 double]}
>>>      fsample: 2048
>>>   sampleinfo: [1 85724]
>>>         time: {[1×85724 double]}
>>>        label: {163×1 cell}
>>>         elec: [1×1 struct]
>>> 
>>> I used the function as => fieldtrip2eeglab(data{1, 1}.hdr , data{1, 1} ) 
>>> and tried also fieldtrip2eeglab(data{1, 1}.hdr , data{1, 1}.trial ) 
>>> I get an error 
>>> Reference to non-existent field 'Fs'.
>>> Error in pop_fileio (line 199)
>>> EEG.srate           = dat.Fs;
>>> 
>>> I would appreciate if you can help me with that.
>>> 
>>> Philip
>>> 
>>> 
>>> _______________________________________________
>>> fieldtrip mailing list
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>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1371_journal.pcbi.1002202&d=DwIGaQ&c=-35OiAkTchMrZOngvJPOeA&r=JXMzpyJSYnJcMxEfPzgzaA&m=TJ34Y7C0A382wX4UUUZx4BQve_UAzwEG65TuONZY__k&s=-rYj5Og7N6H-80F0ZYsllFWkQpk0LEJBkWAUCPiR5Hs&e= 
>> 
> 
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