Comments | jrbl: Is there a relationship between k-means and pca?

jrbl

Is there a relationship between k-means and pca?

Jul 20, 2009 11:23

In my ongoing discussion with eekim about the Wiki Analytics project, the following question came up:

Question about PCA: Are the number of principal components related to the number of clusters? In other words, if you ask for 10 clusters, will you get 9 principal components?

( Answer below the fold.... )

linear algebra, clustering algorithms, machine learning

Comments 1

jrbl July 20 2009, 21:45:04 UTC

Boy, this post has generated a lot of discussion over on FaceBook already. Perhaps there's something to Walled Gardens, after all. Clearly I'll have to think about it more.