Hi Franziska,

looks to me that for some reason it does not find the vec function which should be part of the package
under ..freesurferpath/matlab/vec.m

so maybe you just need to source FreeSurfer in the shell before you start matlab (from that same shell).

Best, Martin

On 11/21/2014 02:25 PM, franziska baier wrote:
Hi,
 
I am from Frankfurt, Germany and I want to use Freesurfer and matlab for the analysis of my longitudinal brain structural data. I want to use linear mixed effects modelling, however, I receive an error message when I execute 
 
[lhTh0,lhRe] = lme_mass_fit_EMinit(X,[1 2],Y,ni,lhcortex,3);
 
in matlab. The error message says:
 
Undefined function 'vec' for input arguments of type 'double'.
Error in lme_mass_fit_init (line 117)
    vecD = vec(D);
Error in lme_mass_fit_EMinit (line 69)
[Theta1,Re1] = lme_mass_fit_init(X,Zcols,Y,ni,[],prs)
 
I have already replaced parfor by for. However, my Matlab version is from 2011.
 
It would be great if you could help me with that!
 
Thanks in advance,
Franziska
 
 


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-- 
Dr. Martin Reuter

Instructor in Neurology
  Harvard Medical School
Assistant in Neuroscience
  Dept. of Radiology, Massachusetts General Hospital
  Dept. of Neurology, Massachusetts General Hospital
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  Computer Science and Artificial Intelligence Lab,
  Dept. of Electrical Engineering and Computer Science,
  Massachusetts Institute of Technology

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