values for probe sets. values estimated for probe sets (a) 6457, (b) 1248, and (c) 6571 in six array sets (shown in panels 1–6 from left to right for each probe set). values (constrained to have sum square equal to number of probes used in each array set) are on the y-axis, and probe pairs are labeled 1 to 20 on the x-axis. The title of each panel (for example, p = 0) indicates the proportion of arrays 'present' for the target gene in the array set. Large circles represent identified probe-outliers by negativity or large SE of .
Li and Hung Wong Genome Biology 2001 2:research0032.1 doi:10.1186/gb-2001-2-8-research0032