Dear SPM experts,
I wanted to do a PPI for a contrast over 9 runs in an event related
paradigm choosing a frontal ROI (FWE corrected).
After specifying the PPI design and during assigning the data following
error occured.
It seems that there is no data in the ROI (design matrix looks like
that), but that can't be.
Any ideas?
___________________
SPM2: spm_fmri_spm_ui (v2.52) 10:43:51 - 16/05/2006
=======================================================================
Mapping files : ...done
Calculating globals : ...done
Saving SPM configuration : ...SPM.mat saved
Design reporting : Warning: Divide by zero.
(Type "warning off MATLAB:divideByZero" to suppress this warning.)
> In c:\programme\spm2\spm2\spm_DesMtx.m at line 646
In c:\programme\spm2\spm2\spm_DesRep.m at line 626
In c:\programme\spm2\spm2\spm_fmri_spm_ui.m at line 451
Warning: Divide by zero.
??? Error using ==> svd
NaN or Inf prevents convergence.
Error in ==> c:\programme\spm2\spm2\spm_sp.m (sf_set)
On line 1122 ==> [x.u, s, x.v] = svd(full(X),0);
Error in ==> c:\programme\spm2\spm2\spm_sp.m
On line 221 ==> varargout = {sf_set(X)};
Error in ==> c:\programme\spm2\spm2\spm_SpUtil.m
On line 275 ==> sX = spm_sp('Set',varargin{2});
Error in ==> c:\programme\spm2\spm2\spm_DesRep.m
On line 685 ==> else, est = spm_SpUtil('IsCon',varargin{2}.X); end
Error in ==> c:\programme\spm2\spm2\spm_fmri_spm_ui.m
On line 451 ==> spm_DesRep('DesMtx',SPM.xX,fname,SPM.xsDes)
??? Error while evaluating uicontrol Callback.
______________________
Thanks,
Denise.
--
Denise Doerfel
Dipl.-Psych.
Biopsychology
Dresden University of Technology
Zellescher Weg 17
01069 Dresden
Germany
Tel.: 0049 - 351 - 463 33708
Fax.: 0049 - 351 - 463 37274
mail: [log in to unmask]
http://biopsychologie.tu-dresden.de
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