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Similarity in gene expression trajectories as evaluated by the Dirichlet process Gaussian Process (DPGP) clustering algorithm
Gene expression responses in Halobacterium salinarum exposed to hydrogen peroxide were clustered using the DPGP algorithm. The heatmap displays the proportion of DPGP samples from the Markov chain in which each gene, on the rows and columns, co-clusters with every other gene. Rows and columns were hierarchically clustered by Ward's linkage. The value of the co-clustering proportion scales linearly with intensity (0=black, 1=white). McDowell et al.
Image Credit: Ian McDowell