Important: The stats package has been deprecated. Use the superseding package Statistics instead.

The function sumdata of the subpackage stats[describe, ...] computes sums of  the various powers  of the given data about any origin.

The sum of r-th power about an origin R is computed as follows: S_R:= sum( (X-R)^r ).

The function sumdata is closely related to the function moment.

The value of origin can be either a number, or the various descriptive statistic functions that can be specified via stats[describe, descriptive statistic function].

Classes are assumed to be represented by the class mark, for example 10..12 has the value 11. Missing data are ignored.

The command with(stats[describe],sumdata) allows the use of the abbreviated form of this command.