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I want to create some customized volume indicators.
I never backtest, I only want them to these desired custom
AFL statements to display lines in custom indicator windows.
Directly below, I give a non-technical description
of what OBV() does, and then I will attempt to describe the customized Volume
indicators that I want to be able to test.
OBV() is like a huge Up-Day barrel that
has the total of the day's trading volume added to it
if the stock's close of that day is higher that the open
of that day. I think a more accurate name for OBV() would have been "UDV"
meaning Up-Day volume.
Conversely, if a stock closes lower that it opened,
then the volume for that day is removed from this Up-Day barrel. Obviously,
OBV() can be positive, negative or it could theoretically have a value of
zero.
I would like to have a companion
Down-Day barrel indicator "DDV" that I can use in conjunction with
OBV().
Does anyone know how many bars that the Amibroker version
of OBV() looks at as it is used in this below simple Plot statement. The
number of days that this Amibroker OBV() looks at is unknown to
me.
Plot (OBV(),"UpDayVol Grn",colorGreen,styleLine);
I would like to be able to specify the number of bars
that these desired UDV, and DDV formulas look
at. That way, I could see how the shorter time-frames compare with the
longer time-frames.
I assume that I could simply add the UDV to the DDV in order to
also plot the line of TDV, which is the total volume for that
day.
I played around with CUM() and SUM() , but it is not
doing what I want.
Hopefully, someone will know how to do this, or at least make
some suggestions of how to do it. Ron D
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