is.ref {refer}

Is Object a Reference?

Description

Check whether an R Object inherits a reference class.

Usage

is.ref(x)

is.sref(x)

is.rfexpr(x)

is.slice(x)

is.a.ref(x)

Arguments

x

object of any class

Value

TRUE if x is a reference object, otherwise FALSE

Functions

• is.sref: check whether object is an 'sref' object

• is.rfexpr: check whether object is a reference expression

• is.slice: check whether object references a slice of a vector

• is.a.ref: check whether object is any type of reference class

Examples

# Create a vectors of random numbers
x <- rnorm(10)

# Create a reference to the random numbers
ref_to_x <- ref(x)

is.ref(ref_to_x) # TRUE