[FieldTrip] ?==?utf-8?q? ?==?utf-8?q? ?= ft appendspike create a trialfun for continuos dat

[Martin Rosenfelder]

Dear Alex,

I suppose that Fieldtrip throws that particular error, since the data is already present in MATLAB structure. Actually, I think there is no need to define the trial using ft_definetrial. Maybe ft_redifinetrial accepts the MATLAB structure of your data. Does reading the data as 'continuous' work using ft_preprocessing?
See also the following link to a similar problem which had been discussed in the Fieldtrip community three years ago:
https://mailman.science.ru.nl/pipermail/fieldtrip/2016-July/010699.html

Best,
Martin 
 
 
-- 
M.Sc.-Psych. Martin Rosenfelder
Wissenschaftlicher Mitarbeiter
Klinische und Biologische Psychologie
Universität Ulm
Raum 47.2.259
+49 731-50 26592
martin.rosenfelder at uni-ulm.de 
 
Am Dienstag, 19. Februar 2019 12:52 CET, María Alejandra Korovaichuk <alejandra.korovaichuk at ctb.upm.es> schrieb: 
 
> Thanks Martin, but I tried this many times before and is still the same
> issue.
> FT is not recognizing mydata (is a matlab file with 3 variables: time (in
> milliseconds), lfp data (in mV), and sampling freq
> 
> The message is always the same:
> evaluating trialfunction 'ft_trialfun_general'
> reading the header from 'mydata.mat'
> Error using ft_read_header (line 2581)
> unsupported header format "matlab"
> 
> 
> 
> El mar., 19 feb. 2019 a las 11:44, Martin Rosenfelder (<
> martin.rosenfelder at uni-ulm.de>) escribió:
> 
> > Hi Alex,
> >
> > You can use the ft_definetrial function in order to define your data
> > containing continuous data. In order to achieve this, you can specify the
> > cfg like this:
> > cfg = []
> > cfg.trialdef = (your 1x3 matrix)
> > data_new = ft_definetrial(data)
> >
> > The new variable should now contain your continuous data as one trial.
> > In the new data matrix you can then check the .trl field if it really
> > consists of just one trial from beginning to end of your timeline.
> >
> > Maybe this works.
> >
> > Best,
> > Martin
> >
> >
> >
> >
> > --
> > M.Sc.-Psych. Martin Rosenfelder
> > Wissenschaftlicher Mitarbeiter
> > Klinische und Biologische Psychologie
> > Universität Ulm
> > Raum 47.2.259
> > +49 731-50 26592
> > martin.rosenfelder at uni-ulm.de
> >
> > Am Dienstag, 19. Februar 2019 10:19 CET, María Alejandra Korovaichuk <
> > alejandra.korovaichuk at ctb.upm.es> schrieb:
> >
> > > Hi!
> > >
> > > Is still impossible to use the appendspike function in my data :( That is
> > > way  now I am trying to use the ft_definetrial to create my own set.
> > > My question is how can I create a trialfun for continuos data (that
> > means I
> > > don't want to split my data into segments or events or epochs), I want to
> > > define a long and continuos set of data (the LFP), in order to append the
> > > spike data afterwards.
> > >
> > > Thanks!
> > >
> > > Best,
> > >
> > > Alex
> >
> >
> >
> >
> > _______________________________________________
> > fieldtrip mailing list
> > https://mailman.science.ru.nl/mailman/listinfo/fieldtrip
> > https://doi.org/10.1371/journal.pcbi.1002202
> >
 
 


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