// Downloaded From https://www.WiseStockTrader.com
SetChartOptions(0,0,chartGrid30|chartGrid70);
periods = Param( "Periods", 15, 0, 200, 1 );

Plot(RSIa(WMA(C, 4), periods), _DEFAULT_NAME(), ParamColor( "Color2", colorCycle ), ParamStyle("Style")  );
Plot(70, _DEFAULT_NAME(), colorWhite, styleDashed);
Plot(30, _DEFAULT_NAME(), colorWhite, styleDashed);