Bruce --
I'm not Ed, but I sure would like to see this. I usually use equity
charts when debugging code, and many times Equity() just adds to my
confusion and I have to run a backtest and add the ~~~Equity chart to my
display.
-- Keith
On 7/27/2010 15:10, Bruce wrote:
Ed -
I hesitated posting this because your original question was related to
just lack of scaling support in the Equity() function, AND what I'm
about to descibe is, IMHO, a topic that is probably not for everyone.
But let me explain, and pose a question or two, and then we'll decide
if its worth it.
FIRST, let's define the problem. The Equity() function is, as Tomasz
calls it, a "backtester in a box". IT HAS LIMITATIONS. You ran into
one of them in scaling. There are a few others.
Some time ago I ran into the need to run a portfolio backtest based on
info entered on a chart, and to plot the result. As you know, this
can't be done directly from an indicator, and Tomasz has voiced
concerts about doing lengthy calculations like this in an indicator
that should execute quickly.
Sometimes, though, a need forces one to get creative. There are a
couple of ways to do this, but the bottom line is this -
1. There is a way to do it.
2. It is probably best run on a mouse click but could also be done on
a timed basis.
3. Running a portfolio backtest can impact real-time charting.
4. It is not practical to do it with tick, 1 second, 5 second, etc.
charts.
SO, you have to REALLY want to do this. In my case, I needed the
results of a watchlist portfolio backtest to chart on demand. If your
use fits these constraints, then I'll post an article on how to do
this on AmibrokerU.
-- Bruce
