Number of Trades Counter

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Hi Pete, Begginer with Thinkcript here. I’m wondering if I am missing something. It seems like there should be a simple Thinkscript function that returns the number of trades executed by given strategy?

I’m looking to build quick graphic feedback on effectiveness of strategy by plotting (FloatingPL ) / (Total # of trades executed by strategy), providing average $-per-position feedback for given perameters, for given strategy. 

I’ve been struggling to impliment a counter based on changes in FPL(), but

1) It occurs to me that there must be a simpler way and

2) Platform does NOT LIKE Incrementing with IF/THEN  statements and FPL[1] +1. (Plot dissapears, only likes to count if FPL[1] is in an “else” branch, ect.)

Beating my head against the wall with this for several days now. I really appreciate your help. 

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Posted by Caleb Curtis (Questions: 1, Answers: 1)
Asked on November 29, 2019 9:04 am
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Hi Pete, I was actually able to get the code to spit out a "Accumulated Number of Trades" just now with the following code. From here I should be able to get $ per position, ect. without the hassle of using the strategy reports. declare lower; def FPL = FPL(); plot FPLLine = FPL(); plot ZeroLine = 0; plot FPLbump = FPL == FPL[1]; def tradecounter = if FPL == 0 then 0 #on first data sets otherwise indeterminate initial value of tradecounter to 1 else if FPL == FPL[1] # always executed after initial setting of tradecounter then tradecounter[1] #"flat" current condition - No Change else if FPL[1] != FPL[2] #"rough" current condition - Possible Change then tradecounter[1] #...and "rough" past condition - No Change else tradecounter[1] + 1 ; #...and "flat" plast condition - Incriment one plot tradecounterline = tradecounter;
(Caleb Curtis at November 29, 2019 12:18 pm)
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Sorry, but it does not reliably count the number of trades. I just tested this on a Ichimoku strategy published in one of our videos. The trade report produced by Thinkorswim shows 10 total trades. While your code shows 13 total trades.
(Pete Hahn at November 30, 2019 9:43 am)
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Private answer

You did not include a section of fully functional code. So I really have nothing to offer you.

However I did do a search for the term FloatingPL and found the following posts on this topic:

https://www.hahn-tech.com/ans/strategy-trade-metrics-displayed-in-chart-label/

https://www.hahn-tech.com/ans/the-floatingpl-script/

Did you already search the forum for a solution before posting? If so, did you run across these posts and feel they did not explain why you are not having success?

Edit: Out of curiosity I decided to experiment with the FPL() function to see if it could be used to count the number of trades displayed by a chart strategy on Thinkorswim. Below is the code I used for testing. The end result shows that there is no bullet proof way to use the FPL() function to count trades. Because this function does not return a true/false condition. But rather it returns the actual P/L produced by the strategy orders.

First, be sure to read up on the details for the FPL() function:

https://toslc.thinkorswim.com/center/reference/thinkScript/Functions/Others/FPL.html

Here is the code I used for my test:

declare lower;
def data1 = FPL();
def data2 = FPL()[1];
plot test2 = data1[1] == data2[1] and data1 <> data2;

I'm really not sure why anyone would try to do this using a custom chart study. The preferred method is to export the trade report into a spreadsheet. From the spreadsheet, you can build formulas to compute any sort of trade metrics you require. So much easier than writing code.

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Posted by Pete Hahn (Questions: 37, Answers: 4153)
Answered on November 29, 2019 10:27 am
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Really, really appreciate your prompt response. I spend a couple of hours trying to get your answer here to apply: https://www.hahn-tech.com/ans/how-does-one-use-a-counter-variable-in-thinkscript/ My really big question was if there was a low-hanging \\”packaged\\” function, I was missing. Apparently there isn\\’t so thanks for clarifying that. Your comment form does not seem to be playing nicely with code so I will post my code in solution form.
(Caleb Curtis at November 29, 2019 11:29 am)
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I edited my answer to include some details uncovered while testing for a possible solution.
(Pete Hahn at November 29, 2019 12:16 pm)
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