Three lines are calculated in the Forecast Moving average and Emission (FME) indicator.

• Forecast is a price forecast calculated with the horizon specified in the FcPeriod input parameter. The type of price at which the forecast is calculated is also specified in the input parameter InpPrice. 
• Moving average – moving average. The type of moving average is selected in the InpMA parameter, and the averaging period is set by the MAPeriod parameter. 
• Emission – adaptive radiation line. The idea of building such a line is taken from the article “Building indicator emissions in MQL5”, author Sergey Pavlov. The line is automatically rebuilt depending on how the parameters of the first two lines (Forecast and MA) change. The radiation line acts as the main trend line on the current timeframe. We can assume that its direction of movement is the direction of price movement.