Dynamic Trader and HRV - Historical Volatility Ratio - HELP

[Ian McVicar <icm63@xxxxxxxxxxx>]

http://www.dynamictraders.com/dt3.htm
page down to middle of page, see indicator list

Does any one know how to program this tool- Historical Volatility Ratio

I understand it to be only in Dynamic Trader and CQC software ?

Any comments, advice, suggestions would be great. 

I have played with the volatility in TS2000i wity no luck.
It is described as short term 6 period volatility difference in percentage
terms with 100 period volatiliy, but it is not that simple.

Rgds

Ian

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