Statistics
Defines the summary statistics (such as mean, standard deviation, and median) for a numeric column in the source table. See Add Summary Statistics.
Group
Summarizes the statistics by group. See Use One or More Grouping Columns.
Subgroup
Summarizes the statistics by subgroup. See Create a Two-Way Table of Summary Statistics by Adding a Subgroup Variable.
Freq
Identifies a column whose values assign a frequency to each row.
Weight
Identifies a column whose values assign a weight to each row.