// Downloaded From https://www.WiseStockTrader.com
_SECTION_BEGIN("BB Histogram");
bbhist=((C+2*StDev(C,20) - MA(C,18)) / ((4*StDev(C,18)))*4) - 2;
Plot(bbhist, "BBands Histogram", IIf(bbhist > 0, colorGreen, colorRed), 
styleHistogram + styleThick);
_SECTION_END();