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stats[describe,sumdata] - Sum powers of Statistical List
Calling Sequence
stats[describe, sumdata[which, origin]](data)
describe[sumdata[which, origin, Nconstraint]](data)
Parameters
data
-
statistical list
which
(optional, default=1) value that specifies the required power
origin
(optional, default=0) the quantity about which the moment is computed.
Description
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.
Examples
Sum of third power about 0:
Sum of fourth power about 1:
Sum of fifth power about the mean
See Also
describe(deprecated)[kurtosis], describe(deprecated)[mean], describe(deprecated)[standarddeviation], describe(deprecated)[variance], Statistics, transform(deprecated)[classmark]
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