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Determine whether a distribution is discrete or continuous

Source: R/is_discrete.R
is_discrete.Rd

Generic functions for determining whether a certain probability distribution is discrete or continuous, respectively.

Usage

is_discrete(d, ...)

is_continuous(d, ...)

Arguments

d

An object. The package provides methods for distribution objects such as those from Normal() or Binomial() etc.

...

Arguments passed to methods. Unevaluated arguments will generate a warning to catch mispellings or other possible errors.

Value

A logical vector indicating whether the distribution(s) in d is/are discrete or continuous, respectively.

Details

The generic function is_discrete is intended to return TRUE for every distribution whose entire support is discrete and FALSE otherwise. Analogously, is_continuous is intended to return TRUE for every distribution whose entire support is continuous and FALSE otherwise. For mixed discrete-continuous distributions both methods should return FALSE.

Methods for both generics are provided for all distribution classes set up in this package.

Examples

X <- Normal()
is_discrete(X)
#> [1] FALSE
is_continuous(X)
#> [1] TRUE
Y <- Binomial(size = 10, p = c(0.2, 0.5, 0.8))
is_discrete(Y)
#> [1] TRUE TRUE TRUE
is_continuous(Y)
#> [1] FALSE FALSE FALSE