Scaled dimensionless step sizes (⁠$|δin|∈[0,1]$⁠) for each input parameter, which follow from the chosen trajectory generation method (Section 2.2). Effects corresponding to step sizes smaller than the threshold (red line) are labelled as outliers and removed from the analysis. The threshold is described in Section 4.3. The label colours represent the parameter categories. Black: architectural; red: developmental; green: environmental; blue: physiological. See Table 1 for more information about the input parameters.