Table 2.

Pearson correlation coefficients (r) across microarray generations without antibody (Ab) stain.

-- Ab	Tiling	TAG4	TAG3
TAG3	0.733	0.751	-
TAG4	0.927	-
Tiling	-

TAG4 and tiling data are highly correlated, and this increases with antibody staining (compare Table 3). The opposite trend is observed between TAG3 and TAG4 or tiling, where antibody staining exacerbates the effect. Correlation of barcode intensity is vital because when both treatment and reference results from a single generation are correlated across generations, target identification should be almost identical.