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Fig. 3 | BMC Bioinformatics

Fig. 3

From: A simplicial complex-based approach to unmixing tumor progression data

Fig. 3

Simulated data sets used for validation. Each data set is visualized as a point cloud plotted in the first three principal components of the gene expression space. Each simulated data set is visualized with noise level 0.1 σ, where σ is the variance in gene expression level per gene across cell types. Data are displayed in the case of two lines at a point (a), two tetrahedra at a point (b), two triangles at a point (c1 and c2), and two triangles at an edge (d1 and d2). The triangle cases have been separated to show the connectivity of the non-cosubspatial complexes. Insets in blue provide cartoon illustrations of the projections of cosubspatial versions of the simplicial complexes to facilitate visualization of the true structure of high-dimensional point sets

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