Fig. 4
From: Ki67 reproducibility using digital image analysis: an inter-platform and inter-operator study

Inter-platform variability of Ki67 LI. Since QuantCenter allowed to train only on one slide, a represents HALO and QuPath with one slide and five slides training. b shows all the platforms with only one slide training. The bottom/top of the box in each box plot represent the first (Q1)/third (Q3) quartiles, the bold line inside the box represents the median and the two bars outside the box represent the lowest/highest datum still within 1.5× the interquartile range (Q3–Q1). Outliers are represented with circles and extreme outliers with asterisk