# Loading GPA results from geomorph into Slicermorph?

**URL:** <https://discourse.slicer.org/t/loading-gpa-results-from-geomorph-into-slicermorph/41982>\
**Category:** Support\
**Tags:** quantitative, data-loading\
**Created:** [March 6, 2025, 10:39am UTC](https://discourse.slicer.org/t/loading-gpa-results-from-geomorph-into-slicermorph/41982 "2025-03-06T10:39:23Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![stineblom](https://avatars.discourse-cdn.com/v4/letter/s/d6d6ee/32.png) [@stineblom](https://discourse.slicer.org/u/stineblom)\
**Post date:** [March 6, 2025, 10:39am UTC](https://discourse.slicer.org/t/loading-gpa-results-from-geomorph-into-slicermorph/41982/1 "2025-03-06T10:39:23Z")

</div>

Hi community,

I have created a dataset of 499 pseudolandmarks for 107 bones using ALPACA. I compared the GPA+PCA results from geomorph and Slicermorph and noticed that geomorph describes ~10% more variance along PC1, possibly due to my correction for the ‘sliding’ factor.

Now, I want to explore the data generated in geomorph within Slicermorph. How can I import these data, and in what format? I noticed that Slicermorph’s GPA results generate multiple .csv files—do I need to create similar files to successfully import my data into Slicermorph?

I hope I’ve explained this clearly. Thanks in advance for any help!

/Stine

---

<div class="post-metadata">

**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [March 6, 2025, 4:25pm UTC](https://discourse.slicer.org/t/loading-gpa-results-from-geomorph-into-slicermorph/41982/2 "2025-03-06T16:25:07Z")

</div>

Please look at this example. At this point you we “hack” the GPA module’s “Load an existing analysis” feature to bring results from R and geomorph specifically:

basically all you have to do is to point out the variables that store aligned coordinates and PCA results from geomorph and pass it to function called `geomorph2slicermorph2`.

> **[GitHub - SlicerMorph/SlicerMorphR: R convenience functions for importing SlicerMorph...](https://github.com/SlicerMorph/SlicerMorphR?tab=readme-ov-file#how-to-run-a-geomorph-analysis-with-slicermorph-data-and-get-the-results-back-into-slicermorph-for-visualization)**
>
> R convenience functions for importing SlicerMorph dataset