algebraic.dist (version 0.9.1)

has: Support

Description

support is a class that represents the support of a random element or distribution, i.e. the set of values that it realize.

It's a conceptual class. To satisfy the concept of a support, the following methods must be implemented:

1. has: a function that returns a logical vector indicating whether each value in a vector is contained in the support

2. infimum: a function that returns the infimum of the support

3. supremum: a function that returns the supremum of the support

4. dim: a function that returns the dimension of the support

We provide two implementations that satisfy the concept:

• interval: a support that is an infiite set of contiguous numeric values

• finite_set: a support that is a finite set of values Determine if a value is contained in the support.

Usage

has(object, x)

Value

Logical vector indicating membership.

Arguments

object

A support object.

x

A vector of values.

Examples

I <- interval$new(0, 1, lower_closed = TRUE, upper_closed = TRUE)
has(I, 0.5)  # TRUE
has(I, 2)    # FALSE

S <- finite_set$new(c(1, 2, 3))
has(S, 2)    # TRUE
has(S, 4)    # FALSE