Figure 4.

Principal component analysis (PCA) of heart and non-heart gene expression intensities. A scatterplot of the PC1 and PC2 from the PCA analysis of gene intensities of ~15,000 transcripts from the 20 autopsy and explant heart samples, along with reference triplicate HeLa controls and triplicate heart and liver data (obtained from Affymetrix), clearly separates the samples into heart and non-heart spaces.

Gupta et al. BMC Genomics 2012 13:26   doi:10.1186/1471-2164-13-26
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