# Dump output of fluid.pca~ doesn't return bases

**URL:** https://discourse.flucoma.org/t/dump-output-of-fluid-pca-doesnt-return-bases/790
**Category:** Toolbox2 Related Bugs
**Created:** [February 25, 2021, 6:19pm UTC](https://discourse.flucoma.org/t/dump-output-of-fluid-pca-doesnt-return-bases/790 "2021-02-25T18:19:36Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![rodrigo.constanzo](https://discourse.flucoma.org/user_avatar/discourse.flucoma.org/rodrigo.constanzo/32/12_2.png) [@rodrigo.constanzo](https://discourse.flucoma.org/u/rodrigo.constanzo)
#### Post date: [February 26, 2021, 12:14am UTC](https://discourse.flucoma.org/t/dump-output-of-fluid-pca-doesnt-return-bases/790/6 "2021-02-26T00:14:07Z")

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Ok, [got there in the end](https://discourse.flucoma.org/t/intelligent-feature-selection-with-svm-or-pca/788/8).

I was really confused as to why I was getting a matrix as the output (e.g. 21x21) when I had a 1700x21 space, and asked for 3 dimensions out of `fluid.pca~`, but I guess that’s how `fluid.pca~` computes stuff.

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_[View the full topic](https://discourse.flucoma.org/t/dump-output-of-fluid-pca-doesnt-return-bases/790)._