PrevHighLow Trend Indicator which is calculated by using prev lowest and highest of p1 -period and p2 -period for two MAs.
First MA is made of prev highest of p1-period / prev lowest of p1-period.
Second MA is faster, made up of p2(<p1)- period(same formula).
Can be used in the next way: slower MA(straight line) shows main trend, faster shows temporary...