Additional file 2.

Effect of missing values on the mean correlation coefficient. Effects on the mean correlation coefficient of applying different filtration criteria, i.e. the number of allowed missing values (0 – 23) in the RNA oligo assay data. The x-axis indicates the number of missing values and the y-axis the mean correlation value. The numbers in the plot indicate the number of remaining data points. The mean correlations, post-filtration, range from 0.214 to 0.237.

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Gry et al. BMC Genomics 2009 10:365   doi:10.1186/1471-2164-10-365