Add or Remove Atoms

Add atoms to a support, or take them away.

Usage

support_add_atoms(support, atoms)

support_drop_atoms(support, atoms)

Arguments

support

A support object, or a distribution.

atoms

Atoms to add or remove: a numeric vector, or a discretes object. Removing requires finitely many atoms, since they have to be enumerated; adding does not.

Value

A support object.

Details

Adding an atom that is already there changes nothing. Removing one that is not there changes nothing either. Removing an atom does not disturb the continuous part, so removing an atom sitting on an interval leaves the interval whole.

See also

Other Support algebra: support_contains(), support_restrict(), support_transform(), support_union()

Examples

support_add_atoms(continuous(c(0, Inf)), 0)
#> <support: mixed>
#> -- atoms --
#> Numeric vector series of length 1:
#> 0
#> -- continuous --
#> [0, Inf]
support_drop_atoms(discrete(c(1, 2, 3)), 2)
#> Loading required namespace: testthat
#> <support: discrete>
#> -- atoms --
#> Union series of length 2:
#> 1, 3

# Removing an atom leaves the continuous part alone.
support_drop_atoms(mixed(discrete = 0, continuous = c(0, 1)), 0)
#> <support: continuous>
#> -- continuous --
#> [0, 1]