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Hi,
Glenn: Do I have to be a member of amibroker-dll to get the OSAKA_105 plugin? It sure seems like a nice feature... So, you believe it would do exactly what I need, I mean: it will select the 500 stocks by ranking based on my conditions for EOD day 1 then apply my system for day 2, then do it again for EOD day 2 and apply the resulting 500 tickers to day 3, etc.? That would be awesome!
Chris: This look like a good idea too, but what do you mean by whether it is on the list or not? I export all the results of the daily scan to a .csv with the EOD data for the best 500 tickers, then... what? It sure looks like a good idea if I can understand a little better how to do it. But do I have to do that for each day, and how to put the information back into AB? But so far your idea seems like the easiest to do, even if it would take forever for data going back to last year (but still, taking forever is better than losing all my money with an unsound strategy)
Ken: " Are you
saying that you want to BACKTEST 8000 symbols and "select", based on
profitability, the top 500 most profitable ones to use in your next day's
trading." No; I want to select the 500 tickers which are closest to their 52 weeks HHV and use those tickers for intraday trading the next day. It is easy to do in live trading, but I need to find a way to include it in backtesting so when I test my strategy I am not using 8000 tickers but "only" the 500 closest to HHV based on their daily(yesterday) EOD close.
Thanks all for your help. I really feel like this is going somewhere!
Louis
2008/7/13 glennokb < glennokb@xxxxxxxxxxxx>:
If I understand what you are trying to do, maybe this method - Osaka!
It creates a composite which you can reference in your system for
backtesting
Note that the 500 may not be precise due to data holes (as Graham
mentioned). Plus I just added HHV(H,100) as an example but this need
to be replaced with your rank.
Also, check the categoryGroup or Watchlist is correct in the code.
// Add To Composite RankValue based on Ranking calculation.
/*------------------------
Notes:
1. Install OSAKA_105.zip ranking located here:
http://groups.yahoo.com/group/amibroker-dll/
2. Use CURRENT SYMBOL - an index
(ie: symbol with no data holes).
3. Select date range
4. SCAN
--------------------------*/
osInitialize();
#pragma nocache
// ----------------------------------
// User Variables - enter here
// ----------------------------------
sGroup = 0; // set to desired watchlist.
Rank_No = 500; // set the depth to rank to.
// ----------------------------------
// USER variables - Used for consistency & Ease
// ----------------------------------
sov1 = 100;
sov2 = 0; // not currently used
sov3 = 0; // not currently used
sov4 = 0; // not currently used
// ----------------------------------
// AddToComposite name
// ----------------------------------
ATCName = "~HHV_Rank";
// ----------------------------------
// Ranking Calculation
// ----------------------------------
function Ranking(Sov1,Sov2,Sov3,Sov4)
{
TO = HHV(H,Sov1);
return TO;
}
// ----------------------------------
// End Ranking Calculation
// ----------------------------------
// ----------------------------------
// End User Variables
// ----------------------------------
StartBar = LastValue( ValueWhen( Status("firstbarinrange"),
BarIndex() ) );
FinishBar = LastValue( ValueWhen( Status("lastbarinrange"),
BarIndex() ) );
RankValue = 0; // initialise Rank Value array
List = GetCategorySymbols( categoryGroup, sGroup);
// ----------------------------------
// Create Ranking Table
// ----------------------------------
sRank = osTabCreate();
// Initialize Ranking Columns
// Use loop to add columns to cover # of bars ranked.
i = StartBar;
while (i <= FinishBar)
{
osTabAddColumn("RROR", 1, sRank);
i = i + 1;
}
// ----------------------------------
// Load table with Ranking data
// ----------------------------------
for (j=0; (sTicker = StrExtract( List,j)) != ""; j++)
{
SetForeign(sTicker);
Rank = Ranking(Sov1,Sov2,Sov3,Sov4);
k = StartBar;
i = 0;
while (k <= Finishbar)
{
osTabSetNumber(Rank[k], j, i, sRank);
i = i + 1;
k = k + 1;
}
RestorePriceArrays();
}
// ----------------------------------
// Sorting rank calculations
// ----------------------------------
k = StartBar;
i = 0;
while (k <= Finishbar)
{
osTabSort(sRank, i, False, True);
RankValue[k] = osTabGet(Rank_No-1, i, sRank);
i = i + 1;
k = k + 1;
}
// ---------------------------------------
// clean up - delete srank table
// ---------------------------------------
osTabDelete(srank);
AddToComposite(rankvalue, ATCName, "x",23);
Buy=Sell=1;
Filter=1;
AddColumn(RankValue, "Rank value",1.0);
//END
// ---------------------------------------
Then place this code in your system for backtesting:
HHV_Symbol = Foreign("~HHV_Rank","C");
HHV_Rank = HHV(H,100) > HHV_Symbol;
Buy = HHV_Rank and cond1 and cond2 etc
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