[Eeglablist] save .edf file

[Makoto Miyakoshi]

Thanks Chris, that's very good to know. I'll let our developer know about
it. Sorry for inconvenience and thank you for your help.

Makoto


On Wed, Jul 9, 2014 at 7:47 AM, Parker, Christopher <
christopher.parker.10 at ucl.ac.uk> wrote:

>  Dear EEGLab users,
>
>
>  If you want to read/write EEG files to disk, you can use these functions
> posted on Mathworks.
>
>
>
> http://www.mathworks.co.uk/matlabcentral/fileexchange/36530-read---write-edf+-files/content/lab_write_edf.m
>
>
>  The EEGLab writing functions don't work for me.
>
>
>  Chris
>
>
>
>  ------------------------------
> *From:* Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
> *Sent:* 08 July 2014 17:47
> *To:* Parker, Christopher; Ramón Martinez
> *Cc:* eeglablist at sccn.ucsd.edu
> *Subject:* Re: [Eeglablist] save .edf file
>
>  Dear Ramon,
>
>  Here is a file I/O issue.
>
>  Makoto
>
>
> On Wed, Jul 2, 2014 at 4:05 PM, Parker, Christopher <
> christopher.parker.10 at ucl.ac.uk> wrote:
>
>>  Hi,
>>
>>
>>  Does anyone know how to save an eeglab structure as a .edf file in
>> MATLAB? pop_export() doesn't seem to be working for me.
>>
>>
>>  I read my .edf file in to MATLAB using:
>>
>>
>>  a = pop_biosig(a_filename, 'importevent','off','importannot','off');
>>
>>
>>  I now want to make some change to the 'data' field (append data from
>> another eeg structure) and then save the .edf file with a different
>> filename.
>>
>>
>>  I tried "pop_export(a,'~/test.edf')" which did save a.edf file in the
>> appropriate place. But it then failed to read back in to MATLAB properly
>> with pop_biosig(). The following error was displayed:
>>
>>
>>  Reading data in unknown format...
>> Reference to non-existent field 'POS'.
>>
>> Error in sread (line 53)
>>         StartPos = HDR.FILE.POS/HDR.SampleRate;
>>
>> Error in pop_biosig>readfile (line 224)
>>         DAT=sread(dat, Inf);% this isn't transposed in original!!!!!!!!
>>
>> Error in pop_biosig (line 142)
>> [dat DAT interval] = readfile(filename, g.channels, g.blockrange,
>> g.memorymapped);
>>
>>
>>  I also tried it with an empty structure created by typing "eeglab" in
>> to the command line. Again, the file saved but could not be read back in to
>> MATLAB. This gave the error:
>>
>>
>>  Reference to non-existent field 'POS'.
>>
>> Error in sread (line 53)
>>         StartPos = HDR.FILE.POS/HDR.SampleRate;
>>
>> Error in pop_biosig>readfile (line 224)
>>         DAT=sread(dat, Inf);% this isn't transposed in original!!!!!!!!
>>
>> Error in pop_biosig (line 142)
>> [dat DAT interval] = readfile(filename, g.channels, g.blockrange,
>> g.memorymapped);
>>
>>
>>  The saved files also do not open in EDF Browser. Your help with this
>> would be very much appreciated.
>>
>>
>>  Thanks,
>>
>> Chris
>>
>> _______________________________________________
>> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
>> To unsubscribe, send an empty email to
>> eeglablist-unsubscribe at sccn.ucsd.edu
>> For digest mode, send an email with the subject "set digest mime" to
>> eeglablist-request at sccn.ucsd.edu
>>
>
>
>
>  --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>



-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20140709/8e116f57/attachment.html>