Trimmed Means

For certain Graphs menu 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).