NaN Error about tradingview-assistant-chrome-extension

[akumidv]

Best "Net Profit: All" Annealing works but negative values display as absolu

This is another error. The problem is in $ before digits. I'll fix this today or tomorrow. For now you can change the currency in strategy properties for that ones where currency after digits.

[Steadyeye3]

same here. test runs but csv thats generated after the test has no data

[akumidv]

Thank you for your issue. I fix this error in 1.4 version. It was published on weekend, but for now still on checking in store. Can you check after the extension will be updated?

[akumidv]

Until update you can use fixed version by install extension in developer mode. The instruction in repository README file

[Steadyeye3]

yes, still happening in the fixed version, ID: afgffeoiimejhoekaeimhcaadcidlogb

[akumidv]

This ID is id of extension not the version. Version published two hours ago, Can you reload your browser. Or remove extension, add it again. Check please that version on the extensions page is 1.4. Then reload tradingview page, this is mandatory. And try.

[DriesVR1232]

I tried and it gives the same result unfortunately. NaN in the popup screen to follow the progression of the test and the message "There is no data for conversion" in the excel file.

[agentollie]

When I download from here version is from 14th May - im gathering 1.3

[jonathanhyunsung]

Both versions, 1.3 and 1.4, are producing the same CSV error.
As OP mentions- it was working fine yesterday

[4while]

Version - 1.4 / Size 3.7 MB
brings NaN as some guys said before
Used Profit Factor All (annealing or brute) has the same effect
I'm using the new UI with the deep history slider

[ogerik]

Same issue here, on the older version its working but on the versions which is installed yesterday and today (brand new installation) has the same issues.

[akumidv]

Unfortunately, I don't have access to the beta version and I can't test on it. On the regular version, I can't reproduce this error.

[4while]

Unfortunately, I don't have access to the beta version and I can't test on it. On the regular version, I can't reproduce this error.

Open a support ticket and ask for beta testing enrollment (for deep history), i don't know who's eligible and who is not, they did it for me in 1 hour.

[ogerik]

You mean the beta version of Chrome? You think this could be the problem?

[Steadyeye3]

Same issue on 1.4 update. NaN while optimizing and "There is no data for conversion" is the only thing is the results .csv file

[Steadyeye3]

was not using the deep data beta for my testing

[jonathanhyunsung]

was not using the deep data beta for my testing

Same. Also, the version installed manually from the README method says 1.3 in the extension manager, the version from the Chrome Store is 1.4, both versions have the error.

[4while]

I start to think there are three versions of UI
The old one, the new one without the deep history slider and the ones with the slider. In any case the extension doesn't work for now.

[Ayahuasca94]

I guess there is no solution. we get nan error in both versions.

[4while]

I don't think there are "both" aka two versions because if akumidv said he sees no problem but i (with the deep history slider) and a friend of mine (without the deep history slider) can't pass the NaN error then we have more than 2 versions of the UI. However certainly since most of us can't the extension anymore, i believe they're rolling faster their new UI

[akumidv]

Unfortunately, I don't have access to the beta version and I can't test on it. On the regular version, I can't reproduce this error.

Open a support ticket and ask for beta testing enrollment (for deep history), i don't know who's eligible and who is not, they did it for me in 1 hour.

Yes, I did the same, but have got decline

[akumidv]

Colleagues, I have corrected the error. All the fixes are in the repository, you can install and check. I sent the new version 1.5 to the publication in Google Store
The reason for the error is in two dimensions - now the backtesting data is hidden in the TV API, at least I didn't find them quickly. And the html selectors of the backtesting results table were changed too. I.e. both the main and reserve method to get data were broken.
Please try it, if the error repeats - write here please. If you can take a screenshot of the entire screen with the console open (F12, console tab)

[DriesVR1232]

Still same issue.

Seems like the values are not given to the variables at line 142 and 165.

[jonathanhyunsung]

Still same issue.

Seems like the values are not given to the variables at line 142 and 165.

With appreciation to the Author's hard work -
Getting the same NaN error and CSV file, the F12 console shows the same logs about lines 142 and 165, from the manual installation of the 1.5 version.

[akumidv]

Seems like the values are not given to the variables at line 142 and 165.

Are you sure that you use 1.5 version? Because in new version when the extension do not get table selectors it show an error about this and do not process backtesting optimization. In chrome version are not updated, it demand 2-3 days. You can test only if install extension from repository in developer mode.
I'll check on both TV UI version. On current and on beta.

[akumidv]

Example

[jonathanhyunsung]

Hello,

For 1.5:

1. Best "Net Profit: All" Annealing works but negative values display as absolute values like in the other thread.
   -> Best "Net Profit: All" Annealing is optimizing based on absolute values, both negative and positive.
   -> After everything runs, the "Best 'Net Profit: All': 7139" in the screenshot shows as "Best 'Net Profit: All': -7139" in the Performance Summary tab, it's a negative value and should be picked up by the extension as a negative value instead of positive.
2. Best "Net Profit: All %" Annealing produces the NaN error. Using % Annealing was the workaround to Problem (1.) when it was working a few days ago, but it's been making the NaN error since.

[DrDenizblc]

I installed the extension from the repository.
I restarted chrome.
Then I had the parameters analyzed and separated the unnecessary parameters.
I restored the parameters to version 1.5.
Then I ran it but I got an error like this NAN
can you guys tell me where i made a mistake?
I appreciate your work...

[micant]

@akumidv
Tested by installing manually in developer mode - can confirm is working again for v1.5 and Chrome v101.0.4951.64.
Thank you for your hard work on this excellent plugin.

[Ayahuasca94]

@akumidv

Tested by installing manually in developer mode - can confirm is working again for v1.5 and Chrome v101.0.4951.64.

Thank you for your hard work on this excellent plugin.

I say negative results

[akumidv]

I installed the extension from the repository. I restarted chrome. Then I had the parameters analyzed and separated the unnecessary parameters. I restored the parameters to version 1.5. Then I ran it but I got an error like this NAN can you guys tell me where i made a mistake? I appreciate your work...

Thanks. This is an another problem. And as I see it is not from current version of TV assistants, May be from another fork of this extension (The optimizer maybe?). For now It doesn't have function getStrategyTemplate
May be you use both? Then you need for disable another version of extension they can conflict each other.

[jonathanhyunsung]

Can any of the above be the cause of the absolute values in "Best Net Profit: All" for Annealing? I've disabled/removed all TV Assistants except TV Assistant 1.5, the screenshots are from the backtest.js of 1.5.

[akumidv]

Are any of the above the cause of the absolute values? I've disabled/removed all TV Assistants except TV Assistant 1.5, the screenshots are from the backtest.js of 1.5.

No, This is another part of code. The parser function is tv.parseReportTable() and it have two method to detect negative values, so I wondered why both failed.

[jonathanhyunsung]

Best "Net Profit: All" Annealing works but negative values display as absolu

This is another error. The problem is in $ before digits. I'll fix this today or tomorrow. For now you can change the currency in strategy properties for that ones where currency after digits.

Switching the currency to NZD is making the right optimizations, using Net Profit: All; annealing. Thank you again.

[akumidv]

Best "Net Profit: All" Annealing works but negative values display as absolu

This is another error. The problem is in $ before digits. I'll fix this today or tomorrow. For now you can change the currency in strategy properties for that ones where currency after digits.

Switching the currency to NZD is making the right optimizations, using Net Profit: All; annealing. Thank you again.

I fixed parsing values with currency. So it can correct parse values like -$100. Can you check. It seems working now. Changes in repository as version 1.6.

[akumidv]

Example

[jonathanhyunsung]

It's working perfectly for Default Currency, Net Profit: All, Annealing.

Thank you, very grateful for your awesome work.

[akumidv]

It's working perfectly for Default Currency, Net Profit: All, Annealing.

Thank you, very grateful for your awesome work.

Update please again. I fixed some problem with names of max drawdown and parse data for %

[jonathanhyunsung]

The % was only a workaround/alternative because of the negative value issue in "Net Profit: All" (which was connected to the currencies). The regular "Net Profit: All" works perfectly.

[DriesVR1232]

The "Net Profit: All" works fine

the "Net Profit:All%" doesnt. there i still get the NaN error.

[akumidv]

I'll try to check tomorrow again. For testing results it works on new 1.6 version for UI version with deep history too.

[4while]

I see a different graph of profit - drawdown.
Do they attempt to redraw again the area ?
The xpath to the strategy tab and performance summary link don't look the same

[JasonSPH]

The "Net Profit: All" works fine for me too, but the "Sharpe Ratio: All" still not working...

[DrDenizblc]

With version 1.6, I ran a scan for very long hours. Without using % as currency NZD. It saved the best setting out of 5000 scans and did not show it to me. The values it saved are wrong.
I got another error, when I run the extension, after get the best parameters. it didn't update the strategy, losing all the parameters got . I hope you fix it, becaouse is amazing extension. thank you so much for all you work.

[4while]

@akumidv : Instead on focusing on XPATHs and DIVs and such, why don't you focus on file manipulation of the strategy details?
You will gain time from future cosmetic upgrades of the javascript code and even if they change the details in the csv, is just a different set in the field array, another comma and done.
Maybe few MBytes extra at the cache or non real time results but what matters is robustness and overall performance.

[akumidv]

@akumidv : Instead on focusing on XPATHs and DIVs and such, why don't you focus on file manipulation of the strategy details? You will gain time from future cosmetic upgrades of the javascript code and even if they change the details in the csv, is just a different set in the field array, another comma and done. Maybe few MBytes extra at the cache or non real time results but what matters is robustness and overall performance.

@4while The extension implements emulation of user actions. I know of no other way to make this work, other than to build a robot that works with the interface. Yes, any change in the interface breaks the work, but usually it won't take long to fix it. As for reliability and performance the most reliable way is to make all calculation by using python. That's exactly what I do for myself and test in the Google/AWS cloud (some simple examples in my current course for local community https://github.com/akumidv/quants-algotrading-khv and there https://github.com/akumidv/startup-khv-ai-study).

A test of 2-5 seconds per iteration is a very slowly to optimally test a large parameter space. It should be at least 100-1000 times faster. Perhaps I will release it as an application in the future.