is.constant {LaplacesDemon}

Logical Check of a Constant

Description

This function provides a logical test of whether or not a vector is a constant.

Usage

is.constant(x)

Arguments

x

This is a vector.

Details

As opposed to a variable, a constant is a vector in which the elements contain less than or equal to one unique value.

Value

The is.constant function returns a logical result, reporting TRUE when a vector is a constant, or FALSE otherwise.

Author(s)

Statisticat, LLC. [e-mail]

See Also

unique

Examples

library(LaplacesDemon)
is.constant(rep(1,10)) #TRUE
is.constant(1:10) #FALSE