Strategy for Heiken-Ashi close crossing Triple Exponential Moving Average

I had to update the title of your question so that everyone else would know the context of your question and be able to find it in the search results. The original question title was "Thinkscript Heinken Ashi candle" and it told us absolutely nothing about the topic of your question.

Now on to the solution. I think it will help if you read up on how to apply the AddOrder statement. We have several videos on this topic which would have helped you avoid the mistake you made in your code. But here are the full details straight from the developers at Thinkorswim:

https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Others/AddOrder.html

Reading from that page, we find the third parameter of this function contains the price at which the theoretical trades are executed. In your original code the third parameter contains a value of 1. Which is why your chart does not show the dashed lines connecting each buy and sell order on the chart. Because the buy and sells are all taking place at $1.00. This is also the reason why your report is showing zero profit. Because you are executing every order at one dollar.

Here is your corrected code that will record the buys and sells at the open of the bar that follows the bar that crosses.

plot haClose = ohlc4;
plot tema = TEMA(“length” = 30);
def crossover= haClose > tema and haClose[1] < tema[1];
AddOrder(OrderType.BUY_TO_OPEN, crossover, open[-1], tickColor = GetColor(2), arrowColor = GetColor(3), name = “Buy”);
AddOrder(OrderType.SELL_TO_CLOSE, haClose < tema and haClose[1] > tema[1], open[-1], tickColor = GetColor(2), arrowColor = GetColor(3), name = “Exit_Buy”);

In closing. I will mention that there is very little reason for using a triple exponential moving average. Especially with a length of 30. Why? I wrote an entire article on the topic so you can find the answers here:

https://www.hahn-tech.com/moving-averages-exponential-problems/