how does pca node work?

KNIME Analytics Platform
1

hi...

i think i am a little confused with pca node....

should be input data in specific format?

if someone explains how it work i would be really thankfull.......

2

There is a very shiny intro to PCA located at the link below.  It shoudl provide a bit of information to get you started with it.  I would also mention that normalization is an important part of the data preparation for PCA analysis as can  be other transformations, but this is a topic which is best suited to a more rigorous envirnoment :)

http://www.lauradhamilton.com/introduction-to-principal-component-analysis-pca

3

hi..

that was helpful....

could u please send me a workflow which you have reduced the dimension with pca and get riginal data with fewer dimension

4

Hi,

You can find in attachment a complete PCA treatment.

Best regards,

Fabien

1 Like
5

thanks alot