[Mne_analysis] bdf import issue

[Hari Bharadwaj]

Hi Annett,
    The following is a hpts version of the standard 64 channel Biosemi layout (and also includes standard cardinal point locations) which you could download and provide for the hpts argument when importing...
https://github.com/mne-tools/mne-python/blob/master/mne/io/edf/tests/data/biosemi.hpts

Regarding, not being able to see the channels, I think you just need to add your channel names (probable A1-32 and B1-32) to the channel selection...it seems like the data were imported successfully. You could do that from the channel selection drop down menu of mne_browse_raw and using "Add.." button.

HTH,
Hari

Hari Bharadwaj
Martinos Center for Biomedical Imaging,
Massachusetts General Hospital
Charlestown, MA 02129

hari at nmr.mgh.harvard.edu
Ph: 734-883-5954

> On Sep 7, 2014, at 7:05 AM, annett schirmer <psysa at nus.edu.sg> wrote:
> 
> Hi,
> 
> I'm trying to import a bdf file using the mne_edf2fiff function and have 
> run into two problems.
> 
> 1) I don't have a proper elp or hpts file. Can someone please share or 
> let me know how the information provided by Biosemi 
> (http://www.biosemi.com/headcap.htm) can be converted properly?
> 
> 2) I don't get an error message when I load the converted fif into 
> mne_browse_raw. However, the display window remains empty.
> 
> Thanks!
> Annett
> 
> ######
> 
> annett at asuspc:~/APPLICATIONS/MNE/MNE_TRIAL$ mne_browse_raw --raw 1.fif 
> --digtrig Status
> Using a 4096-point FFT in filtering of raw data with 2048-sample tapers
> bandpass =    0.0 (   0.0) ...   40.0 (   5.0) Hz
> filter is on
> 64-bit architecture. Using 2000.00 Mbytes for ring buffers
> 24 selections loaded from 
> /home/annett/APPLICATIONS/MNE/MNE-2.7.0-3106-Linux-x86_64/share/mne/mne_browse_raw/mne_browse_raw.sel
> Current selection is Vertex
> Initial settings data created.
> 
> --- Opening /home/annett/APPLICATIONS/MNE/MNE_TRIAL/1.fif ---
> 
> No compensation data in /home/annett/APPLICATIONS/MNE/MNE_TRIAL/1.fif
> Compensation in file : uncompensated
> Setting up compensation data...
>         No compensation set. Nothing more to do.
> No compensation was requested.
> A new compensation value (uncompensated) was assigned to 0 MEG channels.
> No SSS data in /home/annett/APPLICATIONS/MNE/MNE_TRIAL/1.fif
> 0 bad channels read from /home/annett/APPLICATIONS/MNE/MNE_TRIAL/1.fif
> filter :   0.000 ...   40.0 Hz   bins : 0 ... 1280 of 4097 hpw : 3 lpw : 80
> Highpass filter will work as specified.
> Initial dc offsets determined
> Raw data file /home/annett/APPLICATIONS/MNE/MNE_TRIAL/1.fif:
>         nchan  = 73
>         nsamp  = 325376
>         sfreq  = 256.000  Hz
>         length = 1271.000 sec
> Scanning Status for triggers...[done]
> 1030 events found in /home/annett/APPLICATIONS/MNE/MNE_TRIAL/1.fif
> 1030 events written to /home/annett/APPLICATIONS/MNE/MNE_TRIAL/1-eve.fif
> Trigger channel : Status max_event : 0
> No projection operator found in 
> /home/annett/APPLICATIONS/MNE/MNE_TRIAL/1.fif
> Average EEG reference projection added.
> 
> --- Projection status ---
> 
>         # 1 : Average EEG reference : 1 vecs : 72 chs EEG active
> 
> --- Complete ---
> 
> -- 
> Dr. Annett Schirmer
> Associate Professor
> Department of Psychology
> Faculty of Arts and Social Sciences
> National University of Singapore
> Block AS4, Level 2
> 9 Arts Link
> Singapore 117570
> 
> Tel: ++65 6516 8703
> Fax: ++65 6773 1843
> 
> _______________________________________________
> Mne_analysis mailing list
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> 
> 
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