Trimmed Means

For certain graphs (e.g., 2D Box Plots, 3D Box Plots, Categorized Box Plots), an option is available to trim the extreme values from the distribution of values of a variable. For example, you can trim (i.e., remove) the lowest 5% and the highest 5% from the distribution of values. The mean of the trimmed distribution of values is referred to as a "trimmed mean" (this term was first used by Tukey, 1962).