Hi - that’s correct. In other words if your target2 mask is the brain mask, then fdt_paths is the same as the sum of rows of matrix2. But note that target2 does not have to be a whole brain mask. It is up to the user what that target2 is.
Cheers
Saad
> On 5 Nov 2017, at 06:18, SUBSCRIBE FSL area51 <[log in to unmask]> wrote:
>
> Maybe this is a basic questions but what is the difference between fdt_matrix2 and fdt_paths? The values in fdt_matrix2 seem to range from 0 to several hundred. Isn't this just the number of streamlines from each seed voxel to every brain target voxel? If I understand correctly, fdt_paths includes streamlines from potential multiple seed voxels?
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