Figure 2From: Effect of RNA quality on transcript intensity levels in microarray analysis of human post-mortem brain tissuesCorrelation structure caused by RNA quality. Histogram of distribution of correlation coefficient between transcript expression profiles and beta actin ratio for septal area sample set HG-U133_Plus2.0 chip, normalization MAS 5.0. Dotted line indicates smoothed correlation coefficient distribution in randomised data. Triangles point to correlation coefficient of 0.05 significance level.Back to article page