Modified by tekolo. But original idea by HPotter v1.0 10/06/2014
The is an indicator that relates price range to
and measures the efficency of price movement. Use the indicator to
determine if the market is trending. If the increased,
then the market is facilitating trade and is more efficient, implying that the
market is trending. If the decreased, then the market
is becoming less efficient, which may indicate a trading range is developing that
may be a trend reversal.