# Median FA structural connectivity matrix

**URL:** <https://community.mrtrix.org/t/median-fa-structural-connectivity-matrix/6249>\
**Category:** Uncategorized\
**Created:** [December 4, 2022, 10:38am UTC](https://community.mrtrix.org/t/median-fa-structural-connectivity-matrix/6249 "2022-12-04T10:38:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Maria](https://community.mrtrix.org/letter_avatar_proxy/v4/letter/m/34f0e0/32.png) [@Maria](https://community.mrtrix.org/u/Maria)\
**Post date:** [December 4, 2022, 10:38am UTC](https://community.mrtrix.org/t/median-fa-structural-connectivity-matrix/6249/1 "2022-12-04T10:38:50Z")

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Dear all,  
I’m wondering how I could create a **median structural connectivity matrix weighted by FA**.  
Looking at the **tck2connectome** doc, the example to create the “mean FA matrix” has this commands: “$ tcksample tracks.tck FA.mif mean\_FA\_per\_streamline.csv -stat\_tck mean; tck2connectome tracks.tck nodes.mif mean\_FA\_connectome.csv -scale\_file mean\_FA\_per\_streamline.csv -stat\_edge mean”.  
I have seen it’s possible to set the -stack\_tck option of **tcksample** command equal to **median**. Unfortunately, the **-stat\_edge** option of the tck2connectome can’t be set to **median**.

Do you know how I could overcome this issue?

Thanks a lot in advance!