Pause calculation When Position is Open-Backtesting

October 25th, 2021, 01:16 PM

Hi All,

I'm trying to create a strategy with a simple buy condition (close crosses above EMA 34) and with an exit based on meeting a target or hitting stop loss. The strategy however recaculated the Target and stop loss each time the buy criteria is met even when an active position is open. Is there a way to pause the Target/stop loss calculation when there is an open position?
The script is posted below.
Any help is appreciated.
Thanks!
AP

def ATR = MovingAverage(AverageType.WILDERS, TrueRange(high, close, low), 14);
def EMA34 = ExpAverage(close, 34);

#BuySignal
def Buy = Close Crosses above EMA34;
# Buy Target
def BuyTarget = if (Buy) then open[-1] + 5*ATR else BuyTarget[1] ;
Plot BT=BuyTarget;
# Buy StopLoss
def BuyStopLoss = if (Buy) then open[-1]-2*ATR else BuyStopLoss[1];
Plot BSL=BuyStopLoss;

#Orders
AddOrder(OrderType.BUY_TO_OPEN, Buy and tradinghours==1, open[-1], tradeSize = 1, tickcolor = GetColor(1), arrowcolor = GetColor(1), name="Buy");
AddOrder(OrderType.SELL_TO_CLOSE, (low crosses below BuyStopLoss) or flatatclose==1, BuyStopLoss, 1, tickcolor = GetColor(1), arrowcolor = GetColor(2));
AddOrder(OrderType.SELL_TO_CLOSE, (high crosses above BuyTarget) or flatatclose==1, open[-1], 1, tickcolor = GetColor(1), arrowcolor = GetColor(3));

October 28th, 2021, 12:36 PM

Try this technique:

Code

def BuyTarget = if (Buy) AND isNaN(EntryPrice())
                        then open[-1] + 5*ATR 
                        else BuyTarget[1] ;

def BuyStopLoss = if (Buy) AND  isNaN(EntryPrice())
                             then open[-1]-2*ATR 
                             else BuyStopLoss[1];

If condition: (Buy) AND condition (EntryPrice() does not exist)
then, set your variable
else, use the prior value for your variable.

Rationale:
The EntryPrice() function is only populated while you're in a trade, so if it's not set, then you're not in a trade, and free to update the variable. If you're already in a trade, your AND condition will evaluate to false, and you'll use the prior value for the variable.

Reference:
https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Others/EntryPrice
https://usethinkscript.com/threads/dont-plot-if-already-in-a-trade.7525/

October 29th, 2021, 10:59 PM

Thank you so much! It is working!

Pause calculation When Position is Open-Backtesting

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Pause calculation When Position is Open-Backtesting