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. 2013 Sep 18;8(9):e73289. doi: 10.1371/journal.pone.0073289

Figure 5. Approximate orthogonality of the NMF basis vectors.

Figure 5

Inline graphic Histogram of angles subtended by all pairs of basis vectors, Inline graphic. Histogram was constructed for all pairwise comparisons between dimensions, excluding self-comparisons. Bar with (*) denotes self-comparisons. Inline graphic Matrix of pairwise comparisons of angles between dimensions.