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Figure 1 | Algorithms for Molecular Biology

Figure 1

From: Metabolite-based clustering and visualization of mass spectrometry data using one-dimensional self-organizing maps

Figure 1

Illustration of differences between sample-based clustering and metabolite-based clustering. A toy example matrix of intensity measurements as obtained from LC/MS experiments. The horizontal dimension corresponds to metabolite (or marker) candidates. The vertical dimension corresponds to conditions and repeated measurements within these conditions. A row represents a sample for sample-based clustering, while a column corresponds to a (putative) metabolite for metabolite-based clustering. Colors represent different intensity values.

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