Figure 5From: Error, reproducibility and sensitivity: a pipeline for data processing of Agilent oligonucleotide expression arraysEstimate of number of expressed genes in one representative macrophage sample. Probes were scored as "on" or "off" by comparing the signal to the signal from the background probe plus a variable threshold (as plotted along the x-axis). The y axis shows % of probes scored as "on" at a given threshold. Each line shows the average calculated from three unstimulated macrophage samples or three Arabidospis samples as shown.Back to article page