Figure 4From: Correlation-maximizing surrogate gene space for visual mining of gene expression patterns in developing barley endosperm tissueVisualization of the gene space by other methods. Density plots by PCA and nMDS, dark shading denoting high gene densities. For comparison, a much better and uniform visual spreading of the genes is provided by HiT-MDS-2, as displayed in Fig. 2.Back to article page