<p><span style="padding: 3px 10px; border-radius: 5px; color: #ffffff; font-weight: bold; display: inline-block; background-color: #ff0000;"> External Email - Use Caution </span></p><p></p><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hai Eric,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I tried exclude=10 but no luck.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">What else i can change to solve this error?<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Aug 31, 2019 at 3:35 PM pooja prabhu <<a href="mailto:prabhuppooja@gmail.com">prabhuppooja@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hai <font face="arial,sans-serif">group,</font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">I encountered the problem while executing the function make_lcmv. The error is ,</font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">ValueError: The eigenspectrum of the leadfield at this voxel is complex. Consider reducing the rank of the leadfield by using reduce_rank=True.</font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif"><br></font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">As recommended i changed included the parameter reduce_rank=True in the function 'make_lcmv', even after that the code gives the same error. <br></font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">I am not sure what is the problem. <br></font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">This work uses 19 channel EEG signals.<br></font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">-------------------------------------<br></font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">Snippet of the code:</font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">src= setup_volume_source_space(subj, pos=5.0,mri=aseg_fname, bem=fname_model,mindist=7.0, subjects_dir=subjects_dir)</font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">fwd = mne.make_forward_solution(info=<a href="http://raw.info" target="_blank">raw.info</a>, trans=None, src=src, bem=fname_bem, mindist=2.0, meg=False, eeg=True, n_jobs=1)<br>noise_cov = mne.compute_covariance(epochs, tmin=0, tmax=0.2, method='empirical',<br> rank=None)<br>data_cov = mne.compute_covariance(epochs, tmin=0.2, tmax=epochs.tmax,<br> method='empirical', rank='full')<br>filters = make_lcmv(info=<a href="http://epochs.info" target="_blank">epochs.info</a>, forward=fwd, data_cov=data_cov, reg=0.05, <br> noise_cov=noise_cov, pick_ori='max-power', <br> weight_norm='nai',reduce_rank=True)</font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font face="arial,sans-serif">---------------------------------------<br></font></div>-- <br><div dir="ltr" class="gmail-m_-785285182745116779gmail_signature"><div dir="ltr"><div><div dir="ltr">Thank You<div>Pooja Prabhu</div><div><br></div></div></div></div></div></div>
</blockquote></div><br clear="all"><br>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr">Thank You<div>Pooja Prabhu</div><div><br></div></div></div></div></div>