Just a wrapper for comparing numerical values, for use with quicksort.
Usage
greaterThan(x, y)
Value
An integer vector.
Arguments
x
A numeric vector.
y
A numeric vector.
Author
Robin Evans
Details
Just returns -1 if x is less than y, 1 if
x is greater, and 0 if they are equal (according to
==). The vectors wrap as usual if they are of different lengths.