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.

Author(s)

Martin Maechler

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 0.999-14 Index]