Posted by Mohammad Rahhal, Last modified by Rawan Al Hourani on 15 June 2016 02:48 PM
The Aroon Oscillator indicator is often used to determine whether a stock is trending or not and how stable the trend is.
Trends are determined by extreme values (above 80) of both lines (Aroon up and Aroon down), whereas unstable prices are determined when both lines
are low (less than 20).
Returns the handles of a technical indicator, in case of failure returns an empty string.