[Mne_analysis] Visualization of EDF gives ugly output

Marijn van Vliet w.m.vanvliet at gmail.com
Mon Apr 8 01:28:25 EDT 2019
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Dear Senaka,

it should work by now. Can you post the relevant lines of code you are using to load the electrode positions, apply the montage and make the plot? Maybe that will give us a clue as to what may be wrong.

best,
Marijn.


> On 8 Apr 2019, at 04:20, Senaka Amarakeerthi <senakahks at gmail.com> wrote:
> 
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> 
> 
> Dear Marijn,
> 
> Thank removing dots solved my problem. Thanks a lot.
> 
> By the way, my plots are still black and white. raw.info shows
> 
> chs : list | 15 items (EEG: 14, STIM: 1)
> 
> I have 14 channels and one marker channel (STIM). Is this correct?
> 
> Best regards,
> 
> Senaka
> 
> On Sun, Apr 7, 2019 at 6:01 PM Marijn van Vliet <w.m.vanvliet at gmail.com> wrote:
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> Dear Senaka,
> 
> are there really dots at the end of all the channel names in emotive.locs? If so, try without them.
> 
> best,
> Marijn.
> 
> > On 7 Apr 2019, at 04:18, Senaka Amarakeerthi <senakahks at gmail.com> wrote:
> > 
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> > 
> > Dear Marijn,
> > 
> > I adjusted emotiv.locs file according to the ch_pure channel names. Still, I am getting the same error.
> > 
> > emotive.locs after rearranging. 
> > 
> >  1    0     0.181       AF3.
> >  2    0        0        F7..
> >  3    180   0.181       F3..
> >  4    180   0.352       FC5.
> >  5   -39    0.231       T7..
> >  6    39    0.231       P7..
> >  7   -90    0.181       O1..
> >  8    90    0.181       O2..
> >  9   -90    0.352       P8..
> > 10    90    0.352       T8..
> > 11  -142    0.231       FC6.
> > 12   142    0.231       F4..
> > 13     0    0.352       F8..
> > 14     0    0.501       AF4.
> > 
> > Regards,
> > 
> > Senaka
> > 
> > 
> > On Sat, Apr 6, 2019 at 10:39 PM Marijn van Vliet <w.m.vanvliet at gmail.com> wrote:
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> > 
> > Dear Senaka,
> > 
> > for each channel listed in ch_pure, the corresponding location is searched for in the emotiv.locs file. Hence, the channel names in ch_pure should match those in emotiv.locs, which in your case is not the case.
> > 
> > best,
> > Marijn.
> > 
> > > On 6 Apr 2019, at 19:41, Senaka Amarakeerthi <senakahks at gmail.com> wrote:
> > > 
> > >         External Email - Use Caution        
> > > 
> > > 
> > > Dear Alex,
> > > 
> > > Thank you for the quick reply. I am trying to channel locations using the code below.
> > > 
> > > ch_pure = ['AF3', 'F7', 'F3', 'FC5', 'T7', 'P7', 'O1', 'O2', 'P8','T8', 'FC6', 'F4', 'F8', 'AF4']
> > > montage_pure = mne.channels.read_montage(kind="emotiv", ch_names=ch_pure, path='/Volumes/STORAGE/Dropbox/')
> > > raw.set_montage(montage=montage_pure)
> > > 
> > > emotiv.locs has the following content
> > >  1    0     .181       Fz..
> > >  2    0        0       Cz..
> > >  3    180   .181       Pz..
> > >  4    180   .352       Oz..
> > >  5   -39    .231       F3..
> > >  6    39    .231       F4..
> > >  7   -90    .181       C3..
> > >  8    90    .181       C4..
> > >  9   -90    .352       T3..
> > > 10    90    .352       T4..
> > > 11  -142    .231       P3..
> > > 12   142    .231       P4..
> > > 13     0    .352       Fpz.
> > > 14     0    .501       EOG.
> > > 
> > > Anyway I ended up with the error:
> > >   365         upper_names = [ch_name.upper() for ch_name in ch_names]
> > >     366
> > >          sel, ch_names_ = zip(*[(i, ch_names[upper_names.index(e)]) for i, e in
> > > 
> > > --> 367                                enumerate([n.upper() for n in ch_names_])
> > >     368
> > >                                 if e in upper_names])
> > > 
> > >     369         sel = list(sel)
> > > 
> > > 
> > > 
> > > ValueError: not enough values to unpack (expected 2, got 0)
> > > 
> > > Any suport is highly appreciated.
> > > 
> > > Senaka
> > > 
> > > 
> > > 
> > > On Sat, Apr 6, 2019 at 1:19 PM Alexandre Gramfort <alexandre.gramfort at inria.fr> wrote:
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> > > 
> > > 
> > > hi Senaka,
> > > 
> > > I assume you speak about "spatial_colors=True" option in evoked.plot
> > > 
> > > if so to get the colors you need to have the channel locations that you can so
> > > far set with set_montage method.
> > > 
> > > HTH
> > > Alex
> > > 
> > > 
> > > On Sat, Apr 6, 2019 at 6:05 AM Senaka Amarakeerthi <senakahks at gmail.com> wrote:
> > >         External Email - Use Caution        
> > > 
> > > 
> > > 
> > > Dear All,
> > > 
> > > Visualization of  FIF generates nice color graphs and EDF generates ugly black and white graphs. Can we get color graphs for EDF as well?
> > > 
> > > Senaka
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