[Eeglablist] Error using FMRIB 1.21

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Jan 6 19:23:57 PST 2015

Dear Martina,

I would like you to try the following:

EEG.data = double(EEG.data);

Does this work? If so, maybe you need to load the data *after* changing the
single/double option.

Sorry for inconvenience. I'll appreciate if you can also file your report
to EEGLAB bugzilla


On Mon, Jan 5, 2015 at 4:02 AM, Martina Locatelli <
martina.locatelli at mail.polimi.it> wrote:

>  Hi!
> I have the same problem described in the following mail I found surfing
> eeglablist:
> On Tue, Dec 9, 2014 at 5:48 PM, Ying Li <yingli.ucla at gmail.com <http://sccn.ucsd.edu/mailman/listinfo/eeglablist>> wrote:
> >>* Hi everyone,
> *>>* Recently I'm using the fmrib plug-in to remove the fMRI-related artifact
> *>* in EEG signal. When I tried to remove the gradient artifacts by clicking
> *>* Tools > FMRIB Tools > FASTR: Remove FMRI gradient artifacts > ok, I met an
> *>* error "Input argument must be double" (as attached).
> *>>* The matlab version I used is R2011b (Mac) R2012b (in Mac) and R2014a (in
> *>* Windows). All of them will encounter this error. My friend who used R2008
> *>* said it would work, but nowadays it's difficult to find such an old version
> *>* of Matlab.
> *>>* Thus, I'm wondering whether there are any updated version of fmrib, or are
> *>* there any solutions to fix this error? I'll appreciate your help a lot!
> *>>* Best wishes,
> *>>* Ying*
> I'm using the example EEG dataset downloaded directly from the FMRIB plug-in web site (http://fsl.fmrib.ox.ac.uk/eeglab/fmribplugin/) and my matlab version is the R2013b one (Windows).
> I found this answer too:
> >Dear Ying,
> >Most likely your EEG.data is single. Open EEGLAB options and uncheck 'use
> >single precision' to let it use double.
> >Makoto
> I did as told but nothing has changed and I encounter the same error: "Input argument must be double"*. ​*What can I do? Thanks a lot for any help.
> Best wishes,
> Martina
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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