Idea: Richard Davoud Donchian --> http://en.wikipedia.org/wiki/Donchian_channel
The upper line shows the highest high of n bars.
The lower line shows the lowest low of n bars.
Tested, yes. But not excessively. Use at your own risk. Feel free to modify or do whatever with it.
The Acceleration/Deceleration Indicator (AC) measures acceleration and deceleration of the current driving force.Average Directional Movement Index (ADX)
The Average Directional Movement Index Indicator (ADX) helps to determine if there is a price trend.