NRMA - an indicator by Konstantin Kopyrkin. It is one of the many implementations of the NRTR indicator (Nick Rypock Trailing Reverse).
The indicator displays NRMA and trailing stop positioning marks - NRTR.

There are four input parameters:

• K - coefficient of NRTR points shift from the price and direction change
• Smooth - NRMA smoothing factor
• Fast - minimal smoothing period
• Sharp - degree of dynamism