Fig. 4

RF importance plot comparing FF/VI with placebo at T3. Metabolites listed at the left of the graph are ordered by importance in their role to separate treatment groups (FF/VI vs placebo). The x-axis shows the “Mean Decrease Accuracy,” which is a measure of the importance of a particular biochemical to the accurate classification of a given sample in the appropriate group. FF/VI, fluticasone furoate/vilanterol trifenatate; RF, random forest; T3, Day 21