PRT goes against rulesIF NOT LongOnMarket AND LongCondition AND belowred = 1 TH?

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  • #4869 quote
    Jerry
    Participant
    New

    Hi guys,

    I’ve found a very interesting “bug”. For some reason it seems that PRT sometimes ignores a very important condition and goes for it anyway. In my code I have this:

    IF NOT LongOnMarket AND LongCondition AND belowred = 1 THEN

    Notice the “belowred = 1”. That’s my on/off trigger for buy, if it’s 0 then no go. Once i’m in the market it goes to zero and waits for a specific condition to switch back on. That works like a charm.

    However, PRT ignores it and takes a trade I don’t want! Look at the attached image. That IF statement is the only place in the code where a buy order is issued… Anyone else have this kind of hick-ups? Errors like this is very costly and if this is a true PRT error it is very serious.

    triggerPRT.png triggerPRT.png
    #4874 quote
    Nicolas
    Keymaster
    Master

    Hello, the other trades I see on your chart were also launched on a 0 condition. It’s difficult to help you more with no code at all 😀

    #4875 quote
    Jerry
    Participant
    New

    Arn’t those just a result of lag? Here is the full code (a bit messy though):

    //Conditions för long re-entry
    ONCE belowred = 1
    
    IF belowred = 0 AND low< MAH10 AND NOT LongOnMarket THEN
    belowred = 1
    ENDIF
    
    // Conditions to enter long positions
    MAL8 = Average[8](low)
    MAH10 = Average[10](high)
    
    William = WilliamsAccumDistr(close)
    WilliamMA = Average[57](William)
    
    LongCondition = low[1] > MAH10 AND open > MAH10 AND MAH10>MAL8 AND William>WilliamMA
    
    
    IF NOT LongOnMarket AND LongCondition AND belowred = 1 THEN
    BUY 100 CONTRACTS AT MARKET
    profittake = high+((high-low)*2)
    belowred = 0
    ENDIF
    
    graph belowred
    
    
    // Conditions to exit long positions
    If LongOnMarket AND open>profittake THEN
    SELL AT MARKET
    ENDIF
    
    //SL om hamnar under blå (MAL8)
    If LongOnMarket AND close<MAL8 THEN
    SELL AT MARKET
    
    ENDIF
    #4878 quote
    Nicolas
    Keymaster
    Master

    Can you tell me what instrument and timeframe please?

    Please test again with this instruction in the first line :

    defparam preloadbars = 0
    #4880 quote
    Jerry
    Participant
    New

    Im running daily on any stock. Preloadbars didn’t work, see attached result.

    PRTissue.png PRTissue.png
    #4883 quote
    Nicolas
    Keymaster
    Master

    For me everything is working well. Your GRAPH instruction draw your “belowred” variable that is reset to 0 each time you take a trade on line 21. That’s why you may think that PRT take the trade in “inverted” mode despite of this variable value.

    #4900 quote
    Jerry
    Participant
    New

     

    Hi Nicolas,

    Yeah I got it now, belowred goes on, trade is made and it goes off all in the same bar – thus it is “invisible” at that entry. Great, many thanks for your help!

    #4996 quote
    Jerry
    Participant
    New

    Hi,

    I’m still having a bit of trouble figuring this one out (this time it’s a reverse problem). Obvious entry is missed completely or severely delayed. Kindly look at the attached image, there should be an entry at X:

    LongCondition = low[1] > MAH10 AND open > MAH10 AND MAH10>MAL8 AND William>WilliamMA
    • Bar before above red line? Check.
    • Open above red line? Check.
    • Red line above blue line? Check.
    • William above Williams MA? Check.
    • belowred = 1? Check.

    Yet no entry at all…

     

    Now let’s have a look at Y:

    Same conditions as above, all check. Yet the entry is at 5th bar!

     

    Is it possible that “AT MARKET” sometimes fail or is greatly delayed? Or am I missing something here?

    PRTissue2.png PRTissue2.png
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PRT goes against rulesIF NOT LongOnMarket AND LongCondition AND belowred = 1 TH?


ProOrder: Automated Strategies & Backtesting

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Jerry @noren Participant
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This topic contains 7 replies,
has 2 voices, and was last updated by Jerry
9 years, 10 months ago.

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Forum: ProOrder: Automated Strategies & Backtesting
Language: English
Started: 04/05/2016
Status: Active
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