Fig. 5
From: Guidance for DNA methylation studies: statistical insights from the Illumina EPIC array
Comparison of tests of linear regression assumptions against DNA methylation variability. Boxplots of –log10(p-value) for each of the 5 tests (a) global (b) skewness (c) kurtosis (d) link function and (e) heteroscedasticity for groups of DNA methylation sites binned by their standard deviation. The boxes are coloured by their mean –log10(p-value) from light yellow (low) to red (high)