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PCA - Principal Component Analysis in FPC
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Topic: PCA - Principal Component Analysis in FPC (Read 2186 times)
schuler
Full Member
Posts: 223
PCA - Principal Component Analysis in FPC
«
on:
June 12, 2021, 04:52:26 pm »
Hello
I did some googling and could not find: does anyone have a source code example about how to calculate PCA with FPC?
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Thaddy
Hero Member
Posts: 14205
Probably until I exterminate Putin.
Re: PCA - Principal Component Analysis in FPC
«
Reply #1 on:
June 12, 2021, 06:49:16 pm »
About
https://en.wikipedia.org/wiki/Principal_component_analysis
?
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Specialize a type, not a var.
Handoko
Hero Member
Posts: 5131
My goal: build my own game engine using Lazarus
Re: PCA - Principal Component Analysis in FPC
«
Reply #2 on:
June 12, 2021, 06:57:01 pm »
Maybe one can find it here:
https://forum.lazarus.freepascal.org/index.php/topic,54902.msg408121.html#msg408121
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Laksen
Hero Member
Posts: 724
Re: PCA - Principal Component Analysis in FPC
«
Reply #3 on:
June 12, 2021, 07:06:28 pm »
I have attached some code that does it based on a SVD approach documented in this article:
https://arxiv.org/pdf/1404.1100.pdf
The SVD routine is a port of the Numerical recipes one nice-ified, but it will be under the normal numerical recipes license of course
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schuler
Full Member
Posts: 223
Re: PCA - Principal Component Analysis in FPC
«
Reply #4 on:
June 13, 2021, 08:00:49 pm »
@Laksen and @Handoko, thank you!
Live Long and Prosper.
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PCA - Principal Component Analysis in FPC
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