is.constant {LaplacesDemon} | R Documentation |

## 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. software@bayesian-inference.com

### See Also

### Examples

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

[Package

*LaplacesDemon*version 16.1.6 Index]