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where to find C++ codes for PCA and CA?

where to find C++ codes for PCA and CA?# Computation - 科学计算

a*g2003-05-12 07:05

1 楼

PCA: principle component analysis;
CA: correspondence analysis.
I have attempted to search on google , but the codes found not work.
Do somebody have the reliable C/C++ codes for them, or is there any good
website on which I can find them?
Thanks a lot!

e*c2003-05-12 07:05

2 楼

Try code from 'Numerical receipe in C' (you can get an E-version from web),
I used it before and it worked fine.

【在 a****g 的大作中提到】

: PCA: principle component analysis;
: CA: correspondence analysis.
: I have attempted to search on google , but the codes found not work.
: Do somebody have the reliable C/C++ codes for them, or is there any good
: website on which I can find them?
: Thanks a lot!

a*g2003-05-12 07:05

3 楼

My labmate has this book. But I can't find PCA. Could you tell me in which
chapter it is?
(also I find the book's website
"http://lib-www.lanl.gov/numerical/bookcpdf.html")
Thanks a lot!

【在 e**c 的大作中提到】

: Try code from 'Numerical receipe in C' (you can get an E-version from web),
: I used it before and it worked fine.

e*c2003-05-12 07:05

4 楼

Cannot remember exactly, you might need to look at
relevant code for solving matrix's eigenvalues.

【在 a****g 的大作中提到】

: My labmate has this book. But I can't find PCA. Could you tell me in which
: chapter it is?
: (also I find the book's website
: "http://lib-www.lanl.gov/numerical/bookcpdf.html")
: Thanks a lot!

a*g2003-05-12 07:05

5 楼

Thank you very much, Tarzan. I guess there is no diect code or function for
PCA in that book, but it is very easy to implement using those eigvalue codes.
I have transformed my data in Matlab, --- that is also very easy.
Thanks again!

web),

【在 e**c 的大作中提到】

: Cannot remember exactly, you might need to look at
: relevant code for solving matrix's eigenvalues.