Description of TDescStat :
TDescStatTable and TDescStatQuery are new database components used to summarize the data contained in any numeric datafield in any of an application's database tables. Tables of any size can be analyzed. The component produces the following output, charts, and sample estimators as properties:Frequency TableCumulative Frequency TableFrequency PolygonHistogram ChartSample SizeMinimumMaximumRangeMedianModeArithmetic MeanSample Variance (and Standard Deviation)Coefficient of VariationSkewness (3rd moment)Kurtosis (4th moment)Registered versions works with all Delphi versions.