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TF{i,j} = TF{i,j} + xY.xf{i,j}(:,1:nf)*xY.U';
Dear SPM experts,
I tried to use the "Wavelet transform" button in the DCM for M/EEG window, but I get an error message. The same happens when I try to save the files as images after inverting the DCM. I think that is because it uses the same function from spm_dcm_ind_results.m (case{lower('Wavelet')}).
The error occurs, because the matrix dimensions of xY.xf{i,j} and xY.U' don't match. The problem seems to be that in line 57 you remove the unmodelled frequency modes in xY.U. That leads to a reduced dimension if you use less then 8 modes (for example dimension 4x45 instead of 8x45). At the same time the dimension of xY.xf{i,j} stays the same (for example 144x8). At the moment I replaced xY.U' by xY.Uold' (that is a copy of xY.U before removing the unmodelled modes). Is this a possible way to do it or would that lead to a wrong time-frequency output?
Best,
Nils
__________________
Dipl.-Math. Nils Rosjat
University of Cologne
Biocenter
Zuelpicher Str. 47b
50674 Cologne
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