<div dir="ltr">Unfortunately this is likely due to a bug in LAPACK:<div><br></div><div><a href="https://github.com/scipy/scipy/issues/3868">https://github.com/scipy/scipy/issues/3868</a><br></div><div><br></div><div>You could try updating LAPACK, using `python-scipy` and `python-numpy` from the Ubuntu repos, or possibly using Anaconda instead of the system Python. Although it's ugly, it also works sometimes to just tweak the inputs a tiny (seemingly trivial) amount, e.g. by including/excluding one extra time point or epoch in calculations.</div><div><br></div><div>Eric</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 18, 2014 at 8:18 AM, Dan Howarth <span dir="ltr"><<a href="mailto:d.c.howarth@gmail.com" target="_blank">d.c.howarth@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">In our lab we take a 'empty room' recording in which we turn on the MEG scanner when no one is in the room in order to further characterize the noise.<div><br></div><div>I haven't had a problem in the past with this function, but for some reason its not working for some subjects and working for others.</div><div><br></div><div>Here's the pipeline of the data:</div><div><br></div><div>max filter -> band pass 1-150 > notch filter 60, 120 > then I compute the proj</div><div><br></div><div>Python was installed on my ubuntu machine. I use virtualenv</div><div><br></div><div>I used pip to install everything.</div><div><br></div><div>scipy: 0.14.0</div><div>numpy: 1.9.1</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 18, 2014 at 3:21 AM, Alexandre Gramfort <span dir="ltr"><<a href="mailto:alexandre.gramfort@telecom-paristech.fr" target="_blank">alexandre.gramfort@telecom-paristech.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">hi Dan,<br>
<br>
on what data did you apply this function?<br>
<br>
how did you install python+numpy+scipy?<br>
<br>
Alex<br>
<div><div><br>
<br>
On Tue, Nov 18, 2014 at 12:26 AM, Dan Howarth <<a href="mailto:d.c.howarth@gmail.com" target="_blank">d.c.howarth@gmail.com</a>> wrote:<br>
> Hello all,<br>
><br>
> I am attempting to use compute_proj_raw<br>
> (<a href="http://martinos.org/mne/stable/generated/mne.compute_proj_raw.html?highlight=compute_proj_raw#mne.compute_proj_raw" target="_blank">http://martinos.org/mne/stable/generated/mne.compute_proj_raw.html?highlight=compute_proj_raw#mne.compute_proj_raw</a>)<br>
><br>
> However, when I run the program I get the following error:<br>
> <a href="https://gist.github.com/howarth/ae6289878337cb30af84" target="_blank">https://gist.github.com/howarth/ae6289878337cb30af84</a><br>
><br>
> This is from the stable version of mnepython using 'pip install mne' which<br>
> was done a few weeks ago.<br>
><br>
> Thanks!<br>
> Dan Howarth<br>
><br>
><br>
><br>
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