//@version=4
study("Dual Thrust Trading Algorithm (ps4)", overlay=true)
// author: capissimo

// This is an PS4 update to the Dual Thrust trading algorithm developed by Michael Chalek. 
// It has been commonly used in futures, forex and equity markets. 
// The idea of Dual Thrust is similar to a typical breakout system, 
// however dual thrust uses the historical price to construct update the look back period - 
// theoretically making it more stable in any given period.

// see: https://www.quantconnect.com/tutorials/strategy-library/dual-thrust-trading-algorithm