Hello,
I am currently trying to import connectivity matrices analyzed via an other software as described in the following post. I managed to create the .mtx.nii but when I tried to run the conn_module using :
"conn_module( 'glm' , ...
'data', Files.mtx.nii, ...
'design_matrix', X, ...
'contrast_between', C, ...
'contrast_within', M, ...
'folder', folder);
"
I get the following error message :" Too many input argument".

Using :
"conn_module( 'glm' , ...
'Files.mtx.nii', ...
'X', ...
'C', ...
'M', ...
'folder')
"
Fix the bug but results in another error "Incorrect dimensions (X and C1 should have the same number of columns)" (X and C does have the same numbers of colums).

I managed to run the function anyway using :
"
conn_module_glm(X, Files.mtx.nii; C, M, folder)
"
But then i get :

"
Warning: Matrix is singular to working precision.
> In spm_inv (line 30)
In spm_reml (line 100)
In spm_est_non_sphericity (line 281)
In spm_spm (line 433)
In conn_module_glm (line 151)

Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND =
-1.000000e+00.
> In spm_inv (line 30)
In spm_reml (line 103)
In spm_est_non_sphericity (line 281)
In spm_spm (line 433)
In conn_module_glm (line 151)
Error using spm_dx>expv (line 279)
The requested tolerance is too high.
Error in spm_dx (line 102)
dx = expv(1,J,x);
Error in spm_reml (line 145)
dh = spm_dx(dFdhh,dFdh,{t});
Error in spm_est_non_sphericity (line 281)
[V,h] = spm_reml(Cy,xX.X,xVi.Vi);
Error in spm_spm (line 433)
[xVi, am] = spm_est_non_sphericity(SPM);
Error in conn_module_glm (line 151)
SPM=spm_spm(SPM);
"
Does someone know how to fix this ?

Thank you a lot for your help,

Valentine


Originally posted by Alfonso Nieto-Castanon: