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. 2004 Feb 10;5:13. doi: 10.1186/1471-2164-5-13

Table 3.

Pooled median and median absolute deviation

Triple-self hybridisations Median pooled (MAD pooled) Self-self hybridisations Median pooled (MAD pooled)
Cy5 / Cy3 0.013 (0.3196) 0.014 (0.2028)
Cy5 / Alexa594 0.0112 (0.2508) 0.012 (0.2977)
Cy3 / Alexa594 -0.0029 (0.2594) 0.005 (0.2495)

Rather than summarising log-ratios on a per-gene basis first, log-ratios for each dye-label combination were pooled across all genes and arrays, median and MAD were then used to provide estimates for centrality and spread.