A plain and simple indicator. The indicator considers there is a
downtrend, if the current low is lower than the low located N bars
Conversely, there is an uptrend, if the current high is higher than
the high N bars before. You can set the check depth in the properties.
The indicator is good for finding rollbacks to use them as entry points.
Fig.1. The Extrem_N indicator
Author: Nikolay Kositsin