Hi,

I'm running into an error with selxavg ('Input to SVD must not contain NaN or Inf') that has been posted before on the mailing list but I couldn't find a solution to it.

The command was selxavg-sess -sf sessid -df sessdir -analysis loc-sm3. 
The output of the log file is:
selxavg-sess log file
$Id: selxavg-sess,v 1.15 2006/01/06 02:37:22 greve Exp $
uid=502(lreddy) gid=502(lreddy) groups=502(lreddy), 81(appserveradm), 79(appserverusr), 80(admin)
/Volumes/donnees/GR/gr_analysis/kan_gr_006
/Applications/freesurfer/fsfast/bin/selxavg-sess
-sf sessid -df sessdir -analysis loc-sm3
Darwin g5-leila.local 8.11.1 Darwin Kernel Version 8.11.1: Wed Oct 10 18:23:28 PDT 2007; root:xnu-792.25.20~1/RELEASE_I386 i386 i386
Fri Mar 12 17:07:53 CET 2010
selxavg: Command not found.
-------------------------------------------
/Volumes/donnees/GR/gr_data/kan_gr_006
Fri Mar 12 17:07:53 CET 2010
--------------------------------------------------------
/Volumes/donnees/GR/gr_data/kan_gr_006/bold
selxavg2 -TR 2.0000 -parname loc.para -o loc-sm3/h -i 018/fmc-sm3 -i 019/fmc-sm3 -i 020/fmc-sm3 -cfg /Volumes/donnees/GR/gr_analysis/kan_gr_006/loc-sm3/analysis.cfg -ipr 1.40625 -pomnibus loc-sm3/omnibus/fsig -fomnibus loc-sm3/omnibus/f
--------------------------------------------------------
cat: /Applications/freesurfer/fsfast/docs/version: No such file or directory
--- Parsing Config File: /Volumes/donnees/GR/gr_analysis/kan_gr_006/loc-sm3/analysis.cfg ----
-gammafit 2.25 1.25 -timewindow 30 -prestim 6 -polyfit 1 -TER 2 -nskip 0 -fwhm 0 -extreg mcextreg -nextreg 3 -rescale 1000
Logfile is loc-sm3/h_sxa.log
matlab file is /tmp/sxa_5739.m
----------- Matlab file --------------
% Matlab file for selxavg2 Fri Mar 12 17:07:53 CET 2010
% This file may be deleted
% /tmp/sxa_5739.m
global QuitOnError;
QuitOnError = 1;
r = fast_selxavg( '-TR', '2.0000', '-parname', 'loc.para', '-o', 'loc-sm3/h', '-i', '018/fmc-sm3', '-i', '019/fmc-sm3', '-i', '020/fmc-sm3', '-cfg', '/Volumes/donnees/GR/gr_analysis/kan_gr_006/loc-sm3/analysis.cfg', '-ipr', '1.40625', '-pomnibus', 'loc-sm3/omnibus/fsig', '-fomnibus', 'loc-sm3/omnibus/f');
if(r==0)
  fmri_touch('/Volumes/donnees/GR/gr_data/kan_gr_006/bold/loc-sm3/selxavg.ok.5739');
end
qoe;
 
-----------------------------------
------------------------------------------
------- matlab output --------------------
Warning: Unable to open display iconic, MATLAB is starting without a display.
  You will not be able to display graphics on the screen.

                              < M A T L A B >
                  Copyright 1984-2007 The MathWorks, Inc.
                         Version 7.4.0.287 (R2007a)
                              January 29, 2007

Warning: Duplicate directory name: /Users/lreddy/matlab.
 
  To get started, type one of these: helpwin, helpdesk, or demo.
  For product information, visit www.mathworks.com.
 
>> >> >> >> >> >> $Id: fast_selxavg.m,v 1.22.2.2 2006/09/29 21:54:40 greve Exp $
Parsing Arguments
RescaleTarget = 1000
Checking Parameters
AutoStimDur: 0
StimDur: Number of Runs: 3
Input Volume List
  1  018/fmc-sm3
  2  019/fmc-sm3
  3  020/fmc-sm3
Input Pardigm File List
  1  018/loc.para
  2  019/loc.para
  3  020/loc.para
Output Volume  loc-sm3/h
F Omnibus Volume  loc-sm3/omnibus/f
Sig Omnibus Volume  loc-sm3/omnibus/fsig
TR    2.000000
TER   2.000000
Total   Window  30
PreStim Window  6
Remove Baseline 1
Remove Trend    0
Remove QTrend   0
Rescale Target  1000
nSkip           0
InPlane Res     1.40625
FWHM            0
Hanning Radius  0
Time Offset     0
GammaFit        1
1  2.25  1.25
GammaFit Alpha: 2
SPM HRF: -1
Seg Brain/Air   1
SynthSeed       0
ExtReg File   mcextreg
NExtReg       3
ExtRegOrthog  0
firstslice   0
nslices      17
nyqreg       0
SynthSeed =          0
Conditions Found (4):  1  2  3  4
Run  1:  32  32  32  32
Run  2:  32  32  32  32
Run  3:  32  32  32  32
Slice 0, 9.3119e-05 --------------
  First Pass (Accumulation), 0.000414148
     Run 1/3, 0.000853017
       Excluding 0 Points: 
     Run 2/3, 0.622743
       Excluding 0 Points: 
     Run 3/3, 1.0841
       Excluding 0 Points: 
  Second Pass (Residual Error Estimation), 1.52296
??? Error using ==> svd
Input to SVD must not contain NaN or Inf.

Error in ==> cond at 40
   s = svd(A);

Error in ==> fast_selxavg at 193
      c = cond(SumXtWX);

>> ??? Undefined function or variable 'r'.

>> quiting matlab
2010-03-12 17:08:05.047 MATLAB[5789] Process manager already initialized -- can't fully enable headless mode.
------------------------------------------
ERROR: fast_selxavg() failed\n



The output of bugr is
FREESURFER_HOME: /Applications/freesurfer
Build stamp: freesurfer-Darwin-tiger-i686-stable-pub-v3.0.5
Kernel info: Darwin 8.11.1 i386

Thanks in advance,
Leila