Source code of connectivity graph

[XiyuSong]

Hello，
congratulations for the great software. We exported the scouts time series to matlab files and calculated the connectivity of Adapted Directed Transfer Function (ADTF) , which has bot been added in Brainstorm, with our own codes. since the connectivity graph from brainstorm is beautiful, we want to dispaly our connectivity graph for the .mat files as the format of brainstorm, but cannot find the source code of connectivity graph. would you like to help us?

yours sincerely
song

[Francois]

Using the connectivity graph display outside of Brainstorm would be very complicated, as it is tightly integrated with the application and the database.
It would be much easier to save your results as connectivity files in the Brainstorm database, and use directly the visualization tools from there.

Compute some connectivity results with the same dimension as your own results with Brainstorm, then modify only the TF field in the .mat file.

The storage of the various fields is documented here:
https://neuroimage.usc.edu/brainstorm/Tutorials/TimeFrequency#On_the_hard_drive

PTE: How is the connectivity matrix stored?

Hi Sebastian, To get the connectivity matrix correctly formatted, you can do the following: Read the file timefreq_connect…mat into the variable TfMat, or right-click > File > Export to Matlab > “TfMat” R = bst_memory(‘GetConnectMatrix’, TfMat); The matrix R is the connectivity matrix [signalsA x signalsB x Frequencies] The frequency bins are described in the TfMat.Freqs: R(:,:,1) is frequency TfMat.Freqs(1) For details on the algorithm, see directly the process function process_compress_sym…

How the Corr matix is saved?

I calculate the correlation matrix by the way NxN. when I check the saved file content, I did not find a N*N matrix. instead of it, I find a variable TF , stored M * 1 matrix. My question, how you experts stored the correlation matrix? In which way? where the pvalue associated with Correlation matrix is stored? How the cohr and other connectivity metris store the results. I tried to do further analysis , so I ask such question. In fact, your software is user friendly and almost perfect. …

[XiyuSong]

Thank you for your help, our question has been solved.