[Eeglablist] Why imaginary parts in dipole fitting

ludwing torres lutobu at gmail.com
Mon Nov 29 12:20:52 PST 2010


Hello.
Im getting this warning when I use dipole fitting:

Warning: Imaginary parts of complex X, Y, and/or Z arguments ignored
> In dipplot at 624
  In pop_dipplot at 189
  In pop_multifit at 214
Scaling components to RMS microvolt
Done.

And when I go to EEG.dipfit.model.posxyz, I get some imaginary dipole
positions.
I'm using a 33 channel definition, when I try to make the warp I get the
next error:
Scaling components to RMS microvolt
Scaling components to RMS microvolt
readlocs(): 'elc' format assumed from file extension
Reading file (lines): 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160
170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350
360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520 530 540
550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 698
converting units from 'mm' to 'dm'
??? Subscripted assignment between dissimilar structures.

Error in ==> ft_electroderealign at 166
    template(i) = ft_convert_units(template(i), elec.unit); % ensure that
the units are consistent with the electrodes

Error in ==> coregister>warp_chans at 650
    elec3 = ft_electroderealign(cfg);

Error in ==> coregister at 200
                    [ tmp dat.transform ] = warp_chans(dat.elec1, dat.elec2,
tmpelec2.label(clist2), 'traditional');

??? Error using ==> waitfor
Error while evaluating uicontrol Callback

Please if someone knows why, give me an answer please.
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