I want to use the "princomp" function of Matlab but this function gives the eigenvalues in a sorted array. This way I can't find out which column corresponds to which eigenvalue.
For Matlab,
m = [1,2,3;4,5,6;7,8,9];
[pc,score,latent] = princomp(m);
is the same as:
m = [2,1,3;5,4,6;8,7,9];
[pc,score,latent] = princomp(m);
Sajjad Fouladvand
Thank you so much Dear Kedar Phatak.
I think my question was wrong because I do't need unsorted eigenvalues!!!There is no relation between eigenvalues and features. I should select k biggest of eigenvalues respect to the variance that I want.
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