Reverse-engineering Time Segmented Volume Indicator

["CRE -- Earthlink" <rengholm@xxxxxxxxxxxxx>]

I use both Tradestation and Worden's TC2000. The proprietary Time Segmented
Volume oscillator in TC2000 seems to work quite similarly to On Balance
Volume; however, there are a number of differences. I'm trying to
reverse-enginner the TSV indicator so I can incorporate it into a system
that can be backtested in Tradestation. Has anyone ever done this, and do
you have either the TS code or the algorithm that you might be willing to
share?

With OBV, the entire day's volume is either added to, or subtracted from a
running total depending upon whether the price was up or down -- regardless
of how much the price rose or fell. TSV on the other hand takes both price
and volume amounts into account. For example, in TC2000, if you set TSV to a
period of 1, it looks like the TSV can be approximated as:  volume *
(percentage price change since last bar) * (a scaling factor)

However, it is not clear to me how the running accumulation takes place when
TSV is set to a longer length. The daily increment does not appear to be
just added to or subtracted from a running total, nor is a moving average of
the daily increment.

Any ideas?  Thanks.

Rudy
rengholm@xxxxxxxxxxxxx