[FieldTrip] One or more output arguments not assigned during call to "read_16bit"

[Arjen Stolk]

Hey Vitoria,

Quick thoughts: what is cfg.dataset here? Is it '/MaterSEEG04-17.edf'? If
so, please try without the '/', or specifying the full path location. Vaguely
recalling here that read_16bit fails on statements such as '~', and perhaps
also '/'. Hoping this was a good gamble.

Best,
Arjen





2017-05-10 9:37 GMT-07:00 Vitória Piai <v.piai.research at gmail.com>:

> Hi FT-ers,
>
> I'm trying to read a big .edf file (2.16GB), using a recent version,
> fieldtrip-20170401.
> I can read the header (attached, if it's of any use). However, when
> reading the data, I'm getting the following errors.
>
> *- If I specify begin and end sample:*
>
>
> *X = ft_read_data(cfg.dataset,'begsample', 1, 'endsample', 30); *error
> opening file: /MaterSEEG04-17.edf
> One or more output arguments not assigned during call to "read_16bit".
>
> Error in read_edf>readLowLevel (line 449)
>   buf = read_16bit(filename, offset, numwords);
>
> Error in read_edf (line 401)
>       buf = readLowLevel(filename, offset, blocksize); % see below in
> subfunction
>
> Error in ft_read_data (line 683)
>     dat = read_edf(filename, hdr, begsample, endsample, chanindx);
>
> *- If I specify channel index:*
>
> *X = ft_read_data(cfg.dataset,'chanindx',chanindx); *Attempted to access
> EDF.chansel(34); index out of bounds because numel(EDF.chansel)=1.
>
> Error in read_edf (line 356)
>     chanindx = EDF.chansel(chanindx);
>
> Error in ft_read_data (line 683)
>     dat = read_edf(filename, hdr, begsample, endsample, chanindx);
>
> I can then "fix" this error by commenting out line 356 in read_edf, which
> brings me back to the first error of "read_16bit". This happens on a PC and
> on a Mac. Something tells me the data isn't being read properly but I can't
> figure out why. Something with mex files maybe? I couldn't find anything
> similar in previous threads nor in Bugzilla, for as far as I could see.
>
> Any thoughts anyone? I have the data on Dropbox and can send the link if
> needed.
>
> Thanks loads,
> Vitoria
>
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