// Downloaded From https://www.WiseStockTrader.com
function MarketFacilitationIndex()
{
  return ( High - Low )/Volume;
}

mfac = MarketFacilitationIndex();
rm = ROC( mfac, 1 );
rv = ROC( Volume, 1 );

Color = IIf( rm > 0 AND rv > 0, colorGreen,
		 IIf( rm < 0 AND rv < 0, colorBlue,
		 IIf( rm > 0 AND rv < 0, colorGrey40,
		 IIf( rm < 0 AND rv > 0, colorRed, colorLightGrey ) ) ) );

Plot( mfac, _DEFAULT_NAME(), Color, ParamStyle("Style", styleHistogram | styleThick, maskHistogram ) );