[Mne_analysis] Save data to certain format

[Teon Brooks]

Hi Ning,

The only output file from MNE is the *.fif. We read the multiple formats
but we have two options for getting the data out: 1. raw.save with the
*.fif, or 2. externally from the numpy.ndarray as an npy with `np.save` or
as a mat file with `scipy.io.savemat`. The latter seems like the most
suitable if you want to interact with EEGLAB in Matlab.

HTH,



teon
--


Teon Brooks, PhD Candidate
NSF Fellow, Chateaubriand Fellow
Department of Psychology, New York University
Researcher | OpenBCI
Co-Chair | BraiNY, Greater NYC Chapter of Society for Neuroscience

On Thu, Mar 31, 2016 at 6:13 PM, chanderler mei <semsociaty at gmail.com>
wrote:

> Dear all,
>
> I loaded my eeg data from *.edf format files. After adding a duplicate
> channel, I want to save the raw data back a *.edf format file:
>
> raw.save('sample_edf.edf',overwrite=True)
>
> The file seems to be much bigger than the original one, from 460,000 KB to
> 860,000 KB.
>
> Also, when I try to import it to Matlab EEGLAB, it says:
> EEGLAB error in function getfiletype() at line 1111:
>
> Operands to be || and && operators must be convertible to logical scalar
> values.
>
> And then I try to open the *.edf file in EDFbrowser, and return error:
> 1th character of version field is not a valid 7-bit ASCII character. File
> is not a valid EDF or BDF file.
>
> I try to just read the *.edf file to python and save it to another *.edf
> file, same errors occur.
>
> QUESTION:
> Is there a format of file I could export my raw data so that it is
> readable in Matlab EEGLAB? Or is there a way to save the raw data to a
> readable *.edf file?
>
> Thank you very much for your time,
>
> Sincerely,
>
> Ning
>
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