# Importing multiple json files of semi-landmarks into R for PCA analysis

**URL:** <https://discourse.slicer.org/t/importing-multiple-json-files-of-semi-landmarks-into-r-for-pca-analysis/27145>\
**Category:** Support\
**Created:** [January 9, 2023, 10:49pm UTC](https://discourse.slicer.org/t/importing-multiple-json-files-of-semi-landmarks-into-r-for-pca-analysis/27145 "2023-01-09T22:49:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![JitziRose](https://avatars.discourse-cdn.com/v4/letter/j/ce7236/32.png) [@JitziRose](https://discourse.slicer.org/u/JitziRose)\
**Post date:** [January 9, 2023, 10:49pm UTC](https://discourse.slicer.org/t/importing-multiple-json-files-of-semi-landmarks-into-r-for-pca-analysis/27145/1 "2023-01-09T22:49:47Z")

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I have looked through the tutorial available on Github ([Tutorials/parser\_and\_sample\_R\_analysis.md at main · SlicerMorph/Tutorials · GitHub](https://github.com/SlicerMorph/Tutorials/blob/main/GPA_3/parser_and_sample_R_analysis.md)) but am still having trouble with importing my files containing semi-landmarks into R.  
I’m looking for a way to import multiple files as a folder (like you can do through GPA in SlicerMorph) and then create a PCA comparing the data from each file.

Does anyone have any advice or have done this before?  
Thank you