HTF coding and preload bars
- This topic has 11 replies, 5 voices, and was last updated 11 months ago by
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Hi there Phil,
I could be regarded your “PRT support” as I too can not follow really what you all say. Still, you could investigate these possible misunderstandings (I imply them by mentioning “my” figures) :
Default of PreLoadbars is 200, I think.
Max of PreLoadBars is 10000.
(don’t ask me what will be used when you claim 66000 etc.).
Notice that there will be something going on with using several TimeFrames. Thus, the 10000 would count for 30 second bars, but also for 4h bars. This may even end up in drama because the base TF will be your 30s which may not allow to span (for) the 4h. Also see my little subject below, which implies something like 360 4h bars in 3 months of 20 trading days. It is even less when we see that no 24 hours continuous trading exists and it depends on the asset.With 30 seconds TimeFrame, you will get something like a theoretical 3 months, which is theoretical because a. it requires V12, b. it requires PRT-IB(KR) and c. it requires the Premium version of PRT. The latter you can obviously have, but still saying because of a. and b. which do not seem to match. But tell that you are on PRT-IB and V12 and all is fine.
On the up side, you will be correct on your observation of the preloaded bars to be necessary in the first place. To many this is logic, but initially maybe not to you. But now it is, because you came up with it yourself, right ? 🙂
And notice that it is not always clear to see how much data a certain indicator requires. If you have a specific indicator you can ask – some of the geeks will know (I don’t).Historically I’ve also had programs not triggered across different accounts where the program is the same, but someone elses account doesnt trigger while others do, I believe this is possibly latency PRT end.
Nah, not so. But don’t underestimate what happens at the brokers (especially IG) if things get volatile (like with FED news) and their systems and they themselves can’t keep up (huge slippage or no entry). One account is fine (because first in order), the other is not (never gets its turn).
And otherwise we still have the market’s workings. I buy at price X, so you will buy at price X+1 or not at all (Limit order).Etc. ?
If I am wrong on some or everything, then apologies.
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10000
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You can use the function button and search preloadbars but it really only tells you the minimum is 200.
Cant say categorically, but for me a HTF program running on 30 seconds took about a month to accumulate enough data to start trading. So assuming your preloadbars is enough bars to allow the determination of signals then if its not working it may have to accumuilate the data live first.
If your criteria is 36K bars then if the program cant initiate with 40K bars it will just run until there are 36Kbars and then maybe start to trigger, sometimes just try with a small amount live to see.
The other point Id mention is that things like averages and other indicators will differ I think if there is insufficient data to form what you might see if there is sufficient data, so a particular criteria may not trigger as you expect until the historical data has caught up with itself on the live trading system. I see this on some programmed indicators at the start of charts, then eventually they display as they should…
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