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Table 5 Mean residual errors for spots with σ2' > σ2 and σ2' < σ2, using I avg or I min pooling metric.

From: Improving the statistical detection of regulated genes from microarray data using intensity-based variance estimation

  Agilent Feature Extraction SPOT Processing Agilent FG + SPOT BG
  σ2' > σ2 σ2' < σ2 σ2' > σ2 σ2' < σ2 σ2' > σ2 σ2' < σ2
  Iavg Imin Iavg Imin Iavg Imin Iavg Imin Iavg Imin Iavg Imin
σM 2 Cond. X 0.19 0.18 0.21 0.20 0.14 0.14 0.15 0.15 0.13 0.13 0.14 0.14
σM 2 Cond. Y 0.22 0.18 0.25 0.23 0.16 0.14 0.17 0.17 0.15 0.13 0.16 0.16
σμ 2 0.19 0.18 0.22 0.19 0.13 0.13 0.14 0.14 0.12 0.12 0.12 0.12
  1. Analysis was performed on Dataset 5 (reference sample design). Data is given for both unpaired and paired analyses, using three different image processing techniques: Agilent Feature Extraction, SPOT Image Processing, and Agilent foreground combined with SPOT background.