You can add columns of descriptive summary statistics for any numeric column in the source table by clicking the Statistics button and making a selection from the menu.
The sum of all weight values in a column. (See Column Properties in The Column Info Window.) Or, if no column is assigned the weight role, Sum Wgt is the total number of nonmissing values.
The standard error of the mean. It is the standard deviation divided by the square root of N. If a column is assigned the role of weight, then the denominator is the square root of the sum of the weights.
The nth root of the product of the data. Zero and negative numbers are treated like missing. For example, you might want to compare two companies based on varying metrics that come from different ranges. The statistic is also helpful when the data contains a large value in a skewed distribution.