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If the List had a Mail of the Year competition, I'd vote for your mail.
Formula wise you are definitely getting the hang of it.
Would the Downloader be looking for data stored PREV before it Appends?
Then a suggestion to Equis:
By having your programmers add the vPREV (or what ever is the right function here)
variable at the beginning of the Convert-function's source code:
****Would that make the Downloader do its Convert jobs in 1/5th of the time?****
Regards,
Ton Maas
ms-irb@xxxxxxxxxxxxxxxx
Dismiss the ".nospam" bit (including the dot) when replying.
Homepage http://home.planet.nl/~anthmaas
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----- Original Message -----
From: "David Bozkurtian" <dbozkurtian@xxxxxxxxxxx>
To: <metastock@xxxxxxxxxxxxx>
Sent: donderdag 17 februari 2000 18:23
Subject: Re: Faster Chandelier Exit
> Glen,
>
> I only tested it with one system. The simple example in the original code
> (Cross(CLOSE, Mov(C,20,E))};) Results were the same. Maybe some other folks
> can take a closer look at it. I also noticed that the ATR(10) is referenced
> twice. By replacing ATR(10) with vATR and defining vATR:=ATR(10) at the top
> of the system, we may see some additional efficiency, but I bet not as much
> as the replacement of PREV.
>
> I will probably be working on creating a custom indicator/advisor so that
> folks can get a better feel for how the thing works, in the near future.
>
> David
>
>
> From: "Glen Wallace" <gcwallace@xxxxxxxx>
> Reply-To: metastock@xxxxxxxxxxxxx
> To: "MetaStock listserver" <metastock@xxxxxxxxxxxxx>
> Subject: Re: Faster Chandelier Exit
> Date: Thu, 17 Feb 2000 08:10:47 -0800
>
>
> Excellent solution, David. Do the results from the revised formula match
> the original formula precisely?
>
>
> ----- Original Message -----
> From: David Bozkurtian <dbozkurtian@xxxxxxxxxxx>
> To: <metastock@xxxxxxxxxxxxx>
> Sent: Thursday, February 17, 2000 5:35 AM
> Subject: Faster Chandelier Exit
>
> List,
>
> A few weeks ago when the Chandelier Exit was posted to the board, I asked if
> there was a faster version of it. On my (slowpoke) 200 Mhz PC at home, it
> took about 1 to 2 minutes to calculate the formula on a single stock.
>
> Anyway, I did not hear of any feasible solutions. Last night, upon reading
> about the 25X25 system at
> http://www.nt-tech.com.au/guppy/gup142.htm , it struck me that the original
> Chandelier Exit (see below) had a whole bunch of PREV statements in it. I'm
> sure everyone knows where I'm going with this by now.
>
> Anyway, here is how the code (at least this iteration) should be modified to
> speed up the calculation by a factor of 5. Basically, we move PREV into a
> variable vPREV prior to using it (so that it is only calculate once) in the
> long and short exits. Here is the code for the long exit. I tested it with
> the sample Entry Rule and receive the same results in 1/5th the time. Just
> modify the SHORT exit in the same way. Hope this helps everyone using it.
>
> {DEFINE ENTRY PRICE, WITH EXIT BEING -- ENTRY PRICE AND NO TRADE BEING 0}
> {Move PREV into a variable to speed things up - DB 2/17/00}
> vPREV:=PREV;
> EntryPrice:= If(vPREV <= 0,
> {Trade entered today?}
> If(LongEntry, CLOSE, 0),
> {Trade entered before today. Stopped today?}
> If(LOW <= vPREV - MoneyMgmtStop, -vPREV,
> If(LOW <= HighestSince(1,vPREV=0, HIGH) - 3 * ATR(10), -vPREV,
> If(LOW <= HighestSince(1,vPREV=0, CLOSE) - 2.5 * ATR(10), -vPREV,
> vPREV))));
>
>
> David
>
>
> ---------------------------------------------------------------------
> CHANDELIER EXIT, version 2 METASTOCK CODE
> Below is the MetaStock code I posted for the Chandelier exit back in
> October, 1999. The trick is to define the entry date/price as the point at
> which your system triggered the entry, not by using the date functions. A
> side benefit is that you can also use it to implement a fixed dollar, or
> money management, stop.
>
> The more time I spend with the Chandelier exit, the more I admire its
> strength as an exit and its simplicity. Because exits tend to be the weakest
> part of a system, I would urge everyone to spend some time with it.
>
> And Chuck LeBeau gets credit for the MetaStock code, not me. I just took his
> framework and applied it to his exit.
>
>
> {LONG EXIT}
> LongEntry:= {this your entry system, eg. Cross(CLOSE, Mov(C,20,E))};
> MoneyMgmtStop:= {this is your maximum loss, in points};
>
> {DEFINE ENTRY PRICE, WITH EXIT BEING -- ENTRY PRICE AND NO TRADE BEING 0}
> EntryPrice:= If(PREV <= 0,
> {Trade entered today?}
> If(LongEntry, CLOSE, 0),
> {Trade entered before today. Stopped today?}
> If(LOW <= PREV - MoneyMgmtStop, -PREV,
> If(LOW <= HighestSince(1,PREV=0, HIGH) - 3 * ATR(10), -PREV,
> If(LOW <= HighestSince(1,PREV=0, CLOSE) - 2.5 * ATR(10), -PREV,
> PREV))));
>
> {EXIT IF ENTRY PRICE < 0 (MEANING EXIT)}
> EntryPrice < 0
>
> {SHORT EXIT}
> ShortEntry:= {this your entry system, eg. Cross(Mov(C,20,E), CLOSE)};
> MoneyMgmtStop:= {this is your maximum loss, in points};
>
> {DEFINE ENTRY PRICE, WITH EXIT BEING -ENTRY PRICE AND NO TRADE BEING 0}
> EntryPrice:= If(PREV <= 0,
> {Trade entered today?}
> If(ShortEntry, CLOSE, 0),
> {Trade entered before today. Stopped today?}
> If(HIGH >= PREV + MoneyMgmtStop, -PREV,
> If(HIGH >= LowestSince(1,PREV=0, LOW) + 3 * ATR(10), -PREV,
> If(HIGH >= LowestSince(1,PREV=0, CLOSE) + 2.5 * ATR(10), -PREV,
> PREV))));
>
> {EXIT IF ENTRY PRICE < 0 (MEANING EXIT)}
> EntryPrice < 0
>
>
> from Glen Wallace
>
>
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