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Hi,
You've actually touched upon a delicate area. If you need to *know for sure* that you have an open position, then your only choice is to write custom backtester code:
http://www.amibroker.org/userkb/2008/03/16/amibroker-custom-backtester-interface-2/
If you just want to visualize where you *might have taken* buy/sell signals, without *knowing for sure* that the positions were actually taken (as a result of restrictions due to number of open positions, availability of funds, etc.), then you can use the Flip function to store all 1's when in a buy and all 0's after a sell.
Have a look at the following code and read up on the functions used. It illustrates redundant signals (i.e. additional buys in blue after already receiving a buy in green, additional sells in orange after already receiving a sell in red) as well as an "in position" ribbon (green when holding, red when not).
Buy = !(Day() % 3); // Buy every day of month divisible by 3
Sell = !(Day() % 4); // Sell every day of month divisible by 4
FirstBuy = ExRem(Buy, Sell); // Remove redundant buys for charting
FirstSell = ExRem(Sell, Buy); // Remove redundant sells for charting
InPos = Flip(FirstBuy, FirstSell); // Store all 1's while in position
Plot(Close, "Price", colorDarkGrey, styleBar);
Plot(2, "In Pos", IIf(InPos, colorGreen, colorRed), styleArea | styleOwnScale | styleNoLabel);
PlotShapes(shapeHollowUpArrow * Buy, colorBlue, 0, Low, -5);
PlotShapes(shapeUpArrow * FirstBuy, colorGreen, 0, Low, -15);
PlotShapes(shapeHollowDownArrow * Sell, colorOrange, 0, High, -5);
PlotShapes(shapeDownArrow * FirstSell, colorRed, 0, High, -15);
Title = "Day: " + Day();
Mike
--- In amibroker@xxxxxxxxxxxxxxx, "jens_lueckhof" <jens_lueckhof@xxx> wrote:
>
> Hi all, I try to convert some ProRealtime codes and I am struggeling with the following:
>
> I have some rules that depend on the position I have in the market, for example something like
>
> SELL = IF(LONGONMARKET) AND blabla
>
> How can I check if I am "Long on market".
>
> Many thanks for your help
> J
>
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