Dear all,

I'm trying to run a retinotopy analysis in several subjects but it crashed with an error in one subject. I ran this command line:

selxavg3-sess -a rtopy.HS.rh -s SUBJ09


and this is the last part of the output with the error message.
Any help would be much appreciated.

Best
Francesca


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                              August 13, 2013

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>> >> >> >> >> >> >>
sxa3pwd =

/usr/local/freesurfer/fsfast/MeytalRetinotopySmoothed

>>
sxa3cmd =

/usr/local/freesurfer/fsfast/bin/selxavg3-sess -a rtopy.HS.rh -s SUBJ09

>> /usr/local/freesurfer/fsfast/toolbox/fast_selxavg3.m
>> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >>

#@# SUBJ09 ###############################
/usr/local/freesurfer/fsfast/MeytalRetinotopySmoothed/SUBJ09
-------------------------
$Id: fast_selxavg3.m,v 1.100.2.2 2012/11/30 18:40:38 greve Exp $
/usr/local/freesurfer/fsfast/toolbox/fast_selxavg3.m
/usr/local/freesurfer/fsfast/toolbox/fast_ldanaflac.m
/usr/local/freesurfer/matlab/MRIread.m
-------------------------
outtop = /usr/local/freesurfer/fsfast/MeytalRetinotopySmoothed
Extension format = nii.gz
nruns = 4
autostimdur =


outanadir = /usr/local/freesurfer/fsfast/MeytalRetinotopySmoothed/SUBJ09/bold/rtopy.HS.rh
Found 110059/126364 (87.1) voxels in mask
Creating Design Matrix
 ... creation time =  0.005 sec
DoMCFit = 1
ntptot = 960, nX = 36, DOF = 924
Saving X matrix to /usr/local/freesurfer/fsfast/MeytalRetinotopySmoothed/SUBJ09/bold/rtopy.HS.rh/Xtmp.mat
Error using svd
Input to SVD must not contain NaN or Inf.

Error in cond (line 36)
    s = svd(A);

Error in fast_selxavg3 (line 279)
  XCond = cond(XtX);


--
Francesca Strappini, Ph.D.
Neurobiology Department
Weizmann Institute of Science
234 Herzl Street, Rehovot 7610001 Israel
Tel.: +972 58 444 2584
E-mail: francesca.strappini@weizmann.ac.il