A scatter plot. The horizontal axis shows principal component number, labelled 1 to 21. The vertical axis shows eigenvalue, labelled 0 to 9. Points are shown for each integer component number. Component 1 has eigenvalue about 8.3, component 2 has eigenvalue about 2.4, component 3 has eigenvalue about 1.8, component 4 has eigenvalue about 1.2, then the eigenvalues fall steadily until component 21 has eigenvalue about 0.03. The points line along a line with a clear bend in it.

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Last updated: 20 May, 2008.