Diameter of a point set

Find an upper bound to the convex hull of a point set

inla.diameter(x, ...)

# Default S3 method
inla.diameter(x, manifold="", ...)
# S3 method for class 'inla.mesh'
inla.diameter(x, ...)
# S3 method for class 'inla.mesh.segment'
inla.diameter(x, ...)
# S3 method for class 'inla.mesh.lattice'
inla.diameter(x, ...)
# S3 method for class 'inla.mesh.1d'
inla.diameter(x, ...)

Arguments

x

A point set as an \(n\times d\) matrix, or an inla.mesh related object.

manifold

Character string specifying the manifold type. Default is to treat the point set with Euclidean \(R^d\) metrics. Use manifold="S2" for great circle distances on the unit sphere (this is set automatically for inla.mesh objects).

...

Additional parameters passed on to other methods.

Value

A scalar, upper bound for the diameter of the convex hull of the point set.

Author

Finn Lindgren <finn.lindgren@gmail.com>

Examples

inla.diameter(matrix(c(0,1,1,0, 0,0,1,1), 4, 2))
#> [1] 1.414214