Dear all,
I am trying to run VBM analysis on some rat T1 MRI data. I wanted to
explore the approach mentioned in this paper:
http://www.ncbi.nlm.nih.gov/pubmed/22521257
I wanted to know how I can pick the same mask as all three tissue priors-
it throws off a warning about the matrix being singular and aborts the
process.
Warning: Matrix is singular, close to singular or badly scaled. Results
may be inaccurate. RCOND =
NaN.
> In expm>PadeApproximantOfDegree at 113
In expm at 37
In spm_maff>P2M at 197
In spm_maff>affreg at 154
In spm_maff at 27
In spm_preproc at 147
In spm_run_preproc at 19
In matlabbatch\private\cfg_run_cm at 29
In cfg_util>local_runcj at 1510
In cfg_util at 830
In cfg_ui>MenuFileRun_Callback at 1186
In gui_mainfcn at 95
In cfg_ui at 53
Failed 'Segment'
Error using schur
Input to SCHUR must not contain NaN or Inf.
In file "C:\Program Files\MATLAB\R2014a\toolbox\matlab\matfun\sqrtm.m"
(???), function "sqrtm" at line 32.
In file "D:\spm8\spm_maff.m" (v4178), function "M2P" at line 162.
In file "D:\spm8\spm_maff.m" (v4178), function "affreg" at line 78.
In file "D:\spm8\spm_maff.m" (v4178), function "spm_maff" at line 27.
In file "D:\spm8\spm_preproc.m" (v4677), function "spm_preproc" at line 148.
In file "D:\spm8\config\spm_run_preproc.m" (v4185), function
"spm_run_preproc" at line 19.
Could anybody advise me regarding this? I've attached the other segment
parameters in this email.
Thanks a lot!
--
Rashmi Jejurikar
Graduate Student
Sumantra Chattarji Lab
National Centre for Biological Sciences, Bangalore
Alternate email: [log in to unmask]
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