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Figure 4 | BMC Bioinformatics

Figure 4

From: Non-negative matrix factorisation methods for the spectral decomposition of MRS data from human brain tumours

Figure 4

Problem A2, AG, MM at LTE, varying the number of sources calculated. Sources of the problem A2, AG, MM at LTE in different experiments with varying number of extracted sources. The first 4 rows show the sources corresponding to experiments in which 3, 4, 5 and 6 sources were calculated. Horizontal axis in the first four rows: frequency in ppm scale. The last row shows the percentage of contribution of each source to each tumour type, for each experiment. Horizontal axis in the last row: source signals. Vertical axes labels and representation of the sources as in previous figures.

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BMC Bioinformatics

ISSN: 1471-2105

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