c.VQI_LB

// @author LazyBear
// @credits Thomas Stridsman
//
//@version=5
indicator("Volatility Quality Index", "c.VQI_LB", overlay=false, precision=0, explicit_plot_zorder=true)

length_slow     = input(9, title="Fast EMA Length")
length_fast     = input(200, title="Slow EMA Length")

vqi_t           = ((high - low) != 0) ? (((close - close[1]) / ta.tr(false)) + ((close - open) / (high - low))) * 0.5 : na
vqi             = math.abs(vqi_t) * ((close - close[1] + (close - open)) * 0.5)

vqi_sum         = ta.cum(vqi)

plot(vqi_sum, color= color.new(#ff0000,0))
plot(ta.sma(vqi_sum,length_slow), color=color.new(#008000,0))
plot(ta.sma(vqi_sum,length_fast),color=color.new(#FF7F00,35))