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<p>Hi!<br>
</p>
<p>I have the same problem described in the following mail I found surfing eeglablist: </p>
<pre style="white-space: pre-wrap;">On Tue, Dec 9, 2014 at 5:48 PM, Ying Li <<a href="http://sccn.ucsd.edu/mailman/listinfo/eeglablist">yingli.ucla at gmail.com</a>> wrote:
><em>
</em>><em> Hi everyone,
</em>><em>
</em>><em> Recently I'm using the fmrib plug-in to remove the fMRI-related artifact
</em>><em> in EEG signal. When I tried to remove the gradient artifacts by clicking
</em>><em> Tools > FMRIB Tools > FASTR: Remove FMRI gradient artifacts > ok, I met an
</em>><em> error "Input argument must be double" (as attached).
</em>><em>
</em>><em> The matlab version I used is R2011b (Mac) R2012b (in Mac) and R2014a (in
</em>><em> Windows). All of them will encounter this error. My friend who used R2008
</em>><em> said it would work, but nowadays it's difficult to find such an old version
</em>><em> of Matlab.
</em>><em>
</em>><em> Thus, I'm wondering whether there are any updated version of fmrib, or are
</em>><em> there any solutions to fix this error? I'll appreciate your help a lot!
</em>><em>
</em>><em> Best wishes,
</em>><em>
</em>><em> Ying</em></pre>
<pre style="white-space: pre-wrap;"><span style="font-family: Calibri, Arial, Helvetica, sans-serif;">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).</span><br></pre>
<pre style="white-space: pre-wrap;"><span style="font-family: Calibri, Arial, Helvetica, sans-serif;">I found this answer too: </span><pre style="white-space: pre-wrap;">>Dear Ying,
>Most likely your EEG.data is single. Open EEGLAB options and uncheck 'use
>single precision' to let it use double.
>Makoto<br></pre><pre style="white-space: pre-wrap;"><span style="font-size: 12pt; font-family: Calibri, Arial, Helvetica, sans-serif;">I did as told but nothing has changed and I encounter the same error: "Input argument must be double"<em>. </em>What can I do? </span><span style="font-size: 12pt; font-family: Calibri, Arial, Helvetica, sans-serif;">Thanks a lot for any help.</span><br></pre><pre style="white-space: pre-wrap;"><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">Best wishes,</span></pre><pre style="white-space: pre-wrap;"><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">Martina</span></pre><pre style="white-space: pre-wrap;"><br></pre><div><br></div></pre>
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