| Description |
Used to detect potential trends in stocks, the Aroon measures (developed by T. Chande) compute the amount of time since a closing value reached a new high or new low. Given a specified period, the Aroon Up will search for the highest closing value during that period and return the distance from the most recent day for when that high happened. The Aroon Down works in the same way except looking for the lowest closing vlaue. Finally, the Aroon Oscillator simply takes the difference between the two values. Valid ranges for the Aroon Up and Aroon Down are 0-100 and for the Aroon Oscillator the valid range is -100 to 100.
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