Dear Experts,
I am following the tutorial available on the SPM web site that describes
how to perform a PPI analysis. I use SPM 5 and Matlab 7.0.
When I try to set the regressor that defines the PPI (such regressor is
called V2x(Att-NoAtt) in the tutorial) I get this error:
??? Error using ==> horzcat
All matrices on a row in the bracketed expression must have the same
number of rows.
Error in ==> blkdiag at 38
y = [y sparse(p1(k),m2(k)); sparse(p2(k),m1(k)) varargin{k}];
Error in ==> <a
href="error:C:\Programmi\spm5\spm_peb_ppi.m,219,1">spm_peb_ppi at 219</a>
Q = blkdiag(Q, speye(M,M)*1e6 );
??? Error while evaluating uicontrol Callback
and the file PPI_V2x(Att-NoAtt).mat is not created.
How can I fix the problem?
Many thanks in advance.
Best wishes,
Federico.
--
Federico Tubaldi, Ph.D Student
Dept. of General Psychology
University of Padova, Via Venezia 8, 35131, Padova, Italy
Present working position:
Visiting student at the Dept. of Neuroradiology
University of Tuebingen, Hoppe-Seyler Strasse 3, D-72076, Tuebingen, Germany
email: [log in to unmask]
mobile: 0049 0177 7466815
mobile: 0039 335 1400451
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