The thing about the grid files is that there is information on the number of tracts, fractional number of tracts, physcial volume of tracts, etc but we are not given probabilities of connectivity between each ROI region. I was expecting that maybe FATCAT would output the probabilities of SC between each pair of brain regions.
But I guess what you're saying is: the file.niml.dset does contain the probabilistic DTT information but it's not meant to be readable by users, right?
Whereas the .grid files contain additional information to the probabilistic values (ie. NT, PV, NV)