Dear MRtrix team, Is there a way of outputing streamline length for each ROI-ROI connection in a connectome analysis. Thanks Peter

Yep: in the tck2connectome help page , check out the options for the connectivity metric, as well as the -stat_edge option (note that the command interface here changed as part of the last tagged update ). So, for instance, if you want the mean streamline length in each edge: Use -scale_length: Thi…

I was looking at this today and edges that don’t have any length end up being recorded in the file as -nan (i.e., when I set -scale_length -stat_edge mean). Is this the correct behaviour? It makes parsing the file a bit difficult and I think that this also results in the file taking up much more spa…

Is this the correct behaviour? No, that’s a mistake I introduced when making the tck2connectome memory-saving changes (the problem isn’t there in master). Pushed the fix to tag_0.3.16 straight away since it’s a trivial thing.

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Streamline length

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