I am not sure how much this resembles the commercial indicator out there as I don't have access to one (noticed the "clone" part? :) ). This is a direct port of a similar MT4 indicator. If you have access to the commercial indicator in another platform, do post some comparison results.
List of my indicators at Appstore: http://blog.tradingview.com/?p=970
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.
// // @author LazyBear // If you use this code, in its original or modified form, do drop me a note. Thx. // study("HawkEye Volume Indicator [LazyBear]", shorttitle="HVI_LB") length=input(200) range=high-low rangeAvg=sma(range,length) volumeA=sma(volume, length) divisor=input(3.6) high1=high low1=low mid1=hl2 u1 = mid1 + (high1-low1)/divisor d1 = mid1 - (high1-low1)/divisor r_enabled1 = (range > rangeAvg) and (close < d1) and volume > volumeA r_enabled2 = close < mid1 r_enabled = r_enabled1 or r_enabled2 g_enabled1 = close > mid1 g_enabled2 = (range > rangeAvg) and (close > u1) and (volume > volumeA) g_enabled3 = (high > high1) and (range < rangeAvg/1.5) and (volume < volumeA) g_enabled4 = (low < low1) and (range < rangeAvg/1.5) and (volume > volumeA) g_enabled = g_enabled1 or g_enabled2 or g_enabled3 or g_enabled4 gr_enabled1 = (range > rangeAvg) and (close > d1) and (close < u1) and (volume > volumeA) and (volume < volumeA*1.5) and (volume > volume) gr_enabled2 = (range < rangeAvg/1.5) and (volume < volumeA/1.5) gr_enabled3 = (close > d1) and (close < u1) gr_enabled = gr_enabled1 or gr_enabled2 or gr_enabled3 v_color=gr_enabled ? gray : g_enabled ? green : r_enabled ? red : blue plot(volume, style=histogram, color=v_color, linewidth=5)