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cluster (version 1.9.2)

predict.ellipsoid: Predict Method for Ellipsoid Objects

Description

Compute points on the ellipsoid boundary, mostly for drawing.

Usage

## S3 method for class 'ellipsoid':
predict(object, n.out=201, \dots)
ellipsoidPoints(A, d2, loc, n=201)

Arguments

object
an object of class ellipsoid, typically from ellipsoidhull().
n.out,n
the number of points to create.
A, d2, loc
arguments of the auxilary ellipsoidPoints, see below.
...
passed to and from methods.

Value

  • a numeric matrix of dimension n.out times $p$.

Details

Note ellipsoidPoints is the workhorse function of the predict.ellipsoid method; the class of object is not checked; it must solely have valid components loc (length $p$), the $p \times p$ matrix cov (corresponding to A) and d2 for the center, the shape (``covariance'') matrix and the squared average radius or distance.

See Also

ellipsoidhull, also for examples.