help for a newby Time specific actions

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Viewing 9 posts - 1 through 9 (of 9 total)
  • 07/24/2017 at 2:17 PM #41507
    Bob Harris

    Hi,

    I have written a script that is intended to run once a day at a specific time,

     

    //Testing if it’s time to wake up !

    IF (CurrentTime = 120101)AND not DaysForbiddenEntry THEN

    ///get entry for current candle – variable B
    B = (Open[0])

    //// get entry possition for previou candle – variable A
    A = (Open[1])

     

    When I try to backtest no positions are opened, is this because you cant backtest a specific time, or is there a fault else-ware in the code?

     

    thanks

     

    07/24/2017 at 3:12 PM #41512
    JC_Bywan

    Hi,

    Can’t say why a backtest doesn’ take positions without seeing the full code with instructions “buy” or “sellshort”, but assuming the rest of this unseen backtest is based on presented time condition only, in case it helps, a common beginner confusion about time in PRT is to assume “time” should return the same value as your watch. But “Time” in PRT is not pure current time, it is the closing time of a candle. For example, when you’re looking at an instrument in a 1h timeframe, a 1h candle starting at 14h would see its “time” value be 15h regardless of when between 14h and 15h you look at it (well, 150000 rather, because of format, but you get the idea).

    Consequently, any test of a candle “time” being compared to 120101 would work only for timeframes in x seconds having candles in its history finishing at 12h01mn01s exactly, but wouldn’t work with any “x minutes” or “x hour” timeframes which couldn’t possibly finish at 12h01mn01s.

    (further details on temporal constants p.8-9 https://www.prorealtime.com/en/pdf/probuilder.pdf

    >> Please update your country flag by choosing a location in your profile settings. Thank you 🙂 <<

     

     

    07/24/2017 at 4:14 PM #41520
    robertogozzi

    Noobywan is right, to do what you want you should use a 1-sec Timeframe or wait for the multitimeframe feature that is rumoured to be released by the end of this year.

     

    07/25/2017 at 4:49 PM #41596
    Bob Harris

    Thank you for your help, you really  helped, But as always one solution highlights the next issue

    when i place a trade, is there any way I can stop a subsequent trade being place for a set period of time, I’m using

    DEFRARM CumulateOrders = False

    to stop orders in the same direction from being placed, but if the market moves against me it tries to place an order in the opposite direction and effectively closes the position.

     

    any pointers gratefully received

    Thanks

     

    07/25/2017 at 8:06 PM #41605
    robertogozzi

    is only evaluated when the strategy is launched and cannot be modified at runtime.

    To achieve your goal you have to  use

    to allow trading or not, as follows:

    If that is what you mean.

    07/26/2017 at 10:01 AM #41634
    Bob Harris

    Thank you for that. I have solved the opening in a time window issue but it has highlighted a second issue

    But I don’t think I expressed my problem very well

    For an example,

    The conditions are set up to go long and it opens a position.

    I want that position to stay open until either the stop-loss is hit or profit is triggered (hopefully the profit).

    As it stand currently if, while the position is open, the conditions to ‘go short’ are met it trues to open a short position and effectively closes my trade early.

    is there any way that, while any position is open it cant place any further trades until the current position closes by hitting the profit target or the stop loss.

    Thanks

    07/26/2017 at 1:07 PM #41666
    JC_Bywan

    “onmarket” should be the useful keyword to avoid “take and reverse” when you want the existing trade to go all the way not stopped prematurely by opposite entry conditions being met (p.17 https://www.prorealtime.com/en/pdf/probacktest.pdf )

    Would use it by adding the condition “if not onmarket” to your existing entry conditions, so that it considers a new entry only if onmarket=0, then it shouldn’t open any opposite direction trade while there’s one still ongoing

     

     

    07/26/2017 at 1:40 PM #41676
    robertogozzi

    Sorry for not being able to insert code because I’m over my phone till friday.

    DEFPARAM FlatAfter=hhmmss should not be used in your case, ’cause it closes any open trade at that specific time.

    DEFPARAM CumulateOrders=True should not be used ’cause it allows more than one trade open at the same time.

    So the solution is to ban more than one trade and let it run till a SL or TP is hit.

    In case some conditions, the other way round, arise you may test LONGONMARKET to close any long trade open and then start a new SHORT trade. Test SHORTONMARKET, instrad, to close short trades and then go Long.

    Roberto

    07/27/2017 at 9:00 AM #41767
    Bob Harris

    Brilliant, Thanks for that, the script works perfectly in back testing

     

    Now to see if it work’s in the real world

     

    Thank you to all who helped

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