Principal components analysis of mouse microarray results. Principal components analysis (PCA) of the non-normalized log2 ratios of (biopsy/reference) showing a clear separation of the UV treated biopsies (+) from the untreated (-). The punch size seems to have no effect on these first two principal component axis. An effect from the animal that was used, is apparent.
Bruning et al. BMC Research Notes 2011 4:438 doi:10.1186/1756-0500-4-438