Hi!

I am completely new to matlab (currently use version 7.10), and my tutor gave me an excercise in which I have to use principal component analysis.

He gave me a dataset (matrix with several hundred rows and columns) which I can use directly in matlab (no text file).

I used the command: princomp (X) on the matrix, but I want to extract ten factors from the dataset, and then make a plot of this data.

All help would be greatly appreciated:)