No Support From ProRealTime
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- This topic has 33 replies, 3 voices, and was last updated 5 years ago by Nicolas.
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06/06/2019 at 8:54 AM #100024
The fact is that the new backtest engine is more accurate than the older one. This is that engine that will be released in June, incorporating MTF capabilities for every account, as you know.
For your personal case, I think that you should wait for the complete analysis and the feedback from support (remember that when you are an IG customer, the time to get a return could take longer).
06/06/2019 at 12:31 PM #100034@Nicolas I do not believe the issue with the strategy I emailed to you is an isolated incident. Was it able to backtest successfully on your side? If not this means there is a greater issue as it used to work fine. I would really appreciate if you could spend 5min on it to see if you are experiencing the same problem. Others I have sent the strategy to are experiencing the same problem. I can also not understand why the backtest speed with larger MTF strategies have been reduced so drastically. After the update it easily takes more than 3 times longer, plus the results look way different to what they did before.
06/07/2019 at 7:36 AM #100069Hello Juanj,
I face also issues with my codes, there should have been a regression somewhere, but don’t know if this is related to your problems.
More specifically, I have strategies running live with a fixed target price. I’m not using a breakeven or a trailing stop, but remember having tested them in the past.
Now that I want to reintroduce breakeven or trailing stops in my code, the backtests are running into an infinite loop. So to be clear, my strategies are fine isolated, the breakeven or trailing stop are fine when used with simpler codes, but together they can’t be tested..
06/07/2019 at 8:17 AM #100073It’s very possible that the issue is indeed related to the latest update. As mentioned I only experience problems with my more complex pieces of code, and I actually also remember getting an infinite loop error a couple of weeks back when trying to use a rather hefty loop in one of my code. I have actually decided to stop coding further on my MTF PRT codes until this ‘yet unidentified arithmetic’ issue is resolved as the backtest speed is unbearably slow and makes testing a pain.
06/07/2019 at 8:40 AM #100076I made some tests with your strategy juanj, none of the variables are calculated. There must be something in the code that make it crash before it starts.. I will try to know more about how it goes in the investigation today.
1 user thanked author for this post.
06/07/2019 at 8:54 AM #100077Thank You Nicolas, I sincerely appreciate you looking into this! It’s almost as if the new engine just gives up and stops trying to calculate the variables.
Like I said it literally worked fine for months and then all of a sudden stopped working. And at the same time, I noticed the increased backtest periods as well as the strange arithmetic calculation anomalies.
06/07/2019 at 9:35 AM #100082As you know, the new backtest engine (that embed the MTF capabilities) is in beta testing and was only available for people asking its activation, and with a warning message. So it is still possible that some issues (and differences!) regarding the old and new version behavior could emerge.
06/07/2019 at 9:43 AM #10008406/08/2019 at 9:12 AM #10017606/13/2019 at 5:51 PM #100574@Nicolas with regards to “I made some tests with your strategy juanj, none of the variables are calculated. There must be something in the code that make it crash before it starts.. I will try to know more about how it goes in the investigation today.”
Is there perhaps any feedback from your side on the investigation?
06/13/2019 at 5:55 PM #10057606/14/2019 at 10:57 AM #10064106/21/2019 at 2:51 PM #101163@Nicolas after nearly 2 painfull months of waiting it would seem the above mentioned PRT bug is finally resolved! As of today, all strategies are running normally again, including the one you submitted for investigation. Would it perhaps be possible for you to find out more details as to what turned out to be the problem?
06/24/2019 at 8:53 AM #10126806/24/2019 at 8:57 AM #101271 -
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