R: Construct Simple "interval" Object

interval {copula} | R Documentation

## Construct Simple "interval" Object

### Description

Easy construction of an object of class `interval`, using typical mathematical notation.

### Usage

    interval(ch)

### Arguments

`ch` | a character string specifying the interval.

### Value

an `interval` object.

### See Also

the `interval` class documentation, notably its reference to more sophisticated interval classes available for R.

### Examples

    interval("[0, 1)")

    ## Two ways to specify open interval borders:
    identical(interval("]-1,1["),
              interval("(-1,1)"))

    ## infinite :
    interval("[0, Inf)")

    ## arithmetic with scalars works:
    4 + 2 * interval("[0, 1.5)") # ->  [4, 7)

    ## str() to look at internals:
    str( interval("[1.2, 7]") )

[Package copula version 1.0-1 Index]