R Graphical Manual

Last data update: 2014.03.03

R: Interval Class

interval

R Documentation

Interval Class

interval constructs an object of class interval representing an interval.

liesWithin checks if a number lies within a given interval.

interval(lower, upper, left=c(">=", ">"), right=c("<=", "<"))

liesWithin(x, int)

`lower`	the lower boundary of the interval. Can be set to `-Inf`.
`upper`	the upper boundary of the interval. Can be set to `Inf`.
`left, right`	a comparison symbol. Must be one of (“>=”, “>”) for `left` and (“<=”, “<”) for `right`, respectively. Determines whether the boundary values are included in the interval or not. The default is “>=” and “<=”, respectively.
`x`	a numeric vector or array giving the numbers to be checked.
`int`	an interval object.

interval returns an object of class interval containing the following components:

`lower`	the lower boundary of the interval
`upper`	the upper boundary of the interval
`left`	the left comparison operator
`right`	the right comparison operator

liesWithin returns TRUE if the given number lies within the interval and FALSE otherwise.

Thorn Thaler


i <- interval(-3, 3, left=">")

liesWithin(-3:5, i)