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Figure 2 | BMC Bioinformatics

Figure 2

From: Differential analysis for high density tiling microarray data

Figure 2

(A) This represents the t-statistic (green) versus d-statistic (black) distribution; the shrinkage in the tails of the latter is due to the additional variance term. (B): This is a scatter-plot of the observed (y-axis) versus expected (x-axis) d-statistic distributions, where the open circles represent the data points. The delta (±Δ) envelope (green) defined about a d-statistic of zero, indicates a null domain – such that regions above and below the positive and negative Δ cutoff indicate up-regulation and down-regulation, respectively.

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