Package-level declarations

A single date's Aroon reading — the Aroon-Up and Aroon-Down lines, each measuring the number of periods (as a percentage of the look-back window) since the most recent high or low.

Response for the Aroon indicator (AROON), which uses two lines, Aroon-Up and Aroon-Down, to identify how strongly and how recently price has trended toward a new high or low.