[FieldTrip] ft_preprocessing ignores channel selection

[Pelt, S. van (Stan)]

Dear Stephan,

Actually, the data structure looks fine to me. The dimension order in the trial field is trialnumber x timepoints, (do you have 129 trials?), not channel x timepoints. Or have I misunderstood your problem?

Best,
Stan



Op 2 okt. 2015 om 20:46 heeft Steph Bickel <bick35 at gmail.com<mailto:bick35 at gmail.com>> het volgende geschreven:

Hello,

sorry for re-posting this, but I was wondering if someone had an idea what is going wrong here? Is there something wrong with my configuration?

Thank you!

Stephan




On Sep 26, 2015, at 11:54 PM, Steph Bickel <bick35 at gmail.com<mailto:bick35 at gmail.com>> wrote:

Hello fieldtrip experts,

a script that used to work gives me problems now.

When I specify subsets of channels to import it will correctly only import the selected label but in the trial field it will have all channels imported.


cfg=[];
cfg.dataset =  edf_file ;
cfg.continuous = ‘yes’;
cfg.demean = ‘yes' ;
cfg.channel = ‘Event' ;
raw = ft_preprocessing(cfg);

raw =

           hdr: [1x1 struct]
         label: {'Event'}
          time: {[1x152082 double]}
         trial: {[129x152082 double]}
       fsample: 499.7071
    sampleinfo: [1 152082]
           cfg: [1x1 struct]


It seems that read_edf.m is being called and at line 351 the chanindx is being overwritten by EDF.chansel (which is being read out of the edf header directly). Do I see this correctly or am I setting wrong parameters?


  if isfield(EDF, 'chansel')
      chanindx = EDF.chansel;
      chanSel = 1;
  else
      chanindx = [1:EDF.NS];
      chanSel = 0;
  end;



Thank you!

Stephan

(I’m using the current github field trip version on a mac)

_______________________________________________
fieldtrip mailing list
fieldtrip at donders.ru.nl<mailto:fieldtrip at donders.ru.nl>
http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20151003/37b9c712/attachment-0002.html>