# PCA Analysis Spoke Length

**URL:** https://discourse.slicer.org/t/pca-analysis-spoke-length/31997
**Category:** Support
**Created:** [October 2, 2023, 5:09pm UTC](https://discourse.slicer.org/t/pca-analysis-spoke-length/31997 "2023-10-02T17:09:36Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![umair04](https://avatars.discourse-cdn.com/v4/letter/u/c67d28/32.png) [@umair04](https://discourse.slicer.org/u/umair04)
#### Post date: [October 2, 2023, 5:09pm UTC](https://discourse.slicer.org/t/pca-analysis-spoke-length/31997/1 "2023-10-02T17:09:36Z")

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I ran a PCA Analysis on multiple skeletal representations and would like to quantify the length of the spokes to determine an average length? Does anyone know how I can do that through 3D Slicer or SlicerSALT?

![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/9/99237a16b6a6b31439c0c7ede4f452a4e497dde9.png)