(interquartile lst)

interquartile returns the interquartile range, the difference between the first and third quartiles.

Parameter	Description
lst	List to operate on

Example

Example 1: Show some quartile information of a list

> (define lst '(1 2 3 4 5 6 7 8 9))
> (first-quartile lst)
3
> (median lst)
5
> (third-quartile lst)
8
> (interquartile lst)
5