Figure 4
From: Reproducibility of gene expression across generations of Affymetrix microarrays
Distribution of 8,044 correlation coefficients corresponding to the common probe sets between HuGeneFL and HG-U95A. Representative probe sets are illustrated in the smaller plots (Affymetrix probe set ID numbers: M14539_at, 38052_at, X16504_s_at and 2035_s_at). The lower left graph shows the plot for a probe set whose expression values were positively correlated between the two chips, while lower right graph shows the plot for a probe set whose expression values were negatively correlated.