Fig. 2
From: Notos - a galaxy tool to analyze CpN observed expected ratios for inferring DNA methylation types
Step 1: data cleaning of a sample of CpG o/e ratios from the locust Locusta migratoria. The left panel a shows the original data. The middle panel b displays the data after removal of all values equal to zero. The blue vertical line corresponds to the sample median. Red vertical lines indicate the possible thresholds for excluding outliers and extreme observations. The selected threshold (k=2) is solid, alternative thresholds are dotted. The right panel c shows the cleaned data with the sample median and the selected threshold