pca function automatically mean-centers

10 visualizaciones (últimos 30 días)
Mari
Mari el 3 de Jul. de 2014
Respondida: Shashank Prasanna el 3 de Jul. de 2014
Hi
It looks as if the pca function automatically mean-centers the data. Is this the case and if so how can I override this? I want to center my data using the median or group means.
Thanks Marì

Respuestas (1)

Shashank Prasanna
Shashank Prasanna el 3 de Jul. de 2014
You are right, by default PCA centers the data. You can however ask PCA not to do that:
Set the name value pair, 'Centered' to false.

Categorías

Más información sobre Dimensionality Reduction and Feature Extraction en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by