How to refresh the detailed report when modifying the TF?
- This topic has 47 replies, 3 voices, and was last updated 10 months ago by
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With the help of GraHal :
This is all normal behaviour indeed. But it is awkward at the same time. Here are a couple of things springing to mind which could be helpful :
- Once a Stats form has been presented for one of the lines in the result list, clicking on that particular line will not show the stats form again. You would need to click briefly on another line first – and then click back on the one you want to show – never mind it is already on screen.
- Only when the Result List is populated for the first time, the Stats form will be presented automatically. This is whether there is one result line only, or several results denoted by the plus sign. Notice that for V12 we should RIGHTclick the plus sign, or else a new Stats form will be presented right away.
- Each time a new Optimization Parameter is added, you should cross away the Result List, or else you won’t understand the results because of the lacking new parameters in it.
- Each time you load the chart (like from Nasdaq) while previously a Backtest ran on it, the Result List will show and the Stats form will show after it has been populated”. But :
- It will always populate one line only, and nothing from an Optimization. This is a. confusing and b. a waste of time.
- *Whether* #5 happens, depends on whether a backtest was active without removing it from the chart. This again is highly confusing and most often no matter you removed it prior to saving, at a restart of the platform it may be there again. You can see this by the tag of it at the top of the screen. Or several of them, because you let them stay at saving.
- When the above is understood somewhat, you will start to understand how/why a new Result list LINE will show when you change the TF of the chart. This is to be regarded the same as #4. Notice that you don’t ask for this new line and merely want to run a backtest again. Try to adopt to your workflow that you remove the Result List from the screen at such situations. I can surely imagine that you want to keep the results (from different TF results) but I don’t think this can ever work well. Try to approach it differently.
- When you don’t have varying parameters (all have been set to a fixed value OR you don’t have parameters at all), no Result list will ever show in the first place. Here too, for various reasons adapt to your workflow that always one dummy varying parameter exists.
- When you have a varying parameter but the result is always the same anyway, situations exist that only one result line shows, while you expect the 10 etc. for the number of iterations. It is a bit vague when this exactly happens and when not, but let’s say that some times it’s smart.
- When you click a result line in order to show the Stats form, do know that it will under the hood again do the same backtest for that line. This means that you should not change the parameters in the Optimization form, because it looks at those parameters again when you click the line. Disclaimer : this is what I seem to have observed.
- After a Walk Forward you better restart the platform because all will be moot after that. Even a second Walk Forward is aggregated into earlier ones you performed in that session. I stopped trying to understand it but I also never asked. There’s much more to say about it, but for another topic, I suppose.
If you lack the “knowledge” of all of the above, then it is no wonder that you can’t understand a thing of what you see.
In general it is best not to think that you will keep the same Result List (which will grow with more backtests) the whole day. Too many reasons exist that you need to remove it (or that it gets removed) so better anticipate that you lose that data/information. Notice that most of us in here spring from the time that this means of a “table” with results from several backtests did not exist yet (this is from July 2022). I personally think that nobody dares to complain one bit on it, because in the end it net is so much more useful than how it was without this table. But, I could file 20+ tickets on it, and GraHal 20 more. I guess we better don’t because PRT may change things to an unworkable degree. So we learn to deal with it and are happy at the same time.Anecdotal : when it was introduced there was a bug and I filed a ticket. The bug was solved and the best feature got removed as well : let stay on the screen all the Stats forms you ever asked for. I urged with capitals that this should come back, but to date it is out.
So if you now want to revisit a Stats form, you need to click on the line of concern, and wait again. The current one being removed of course.
Without looking at the posts in this topic, and looking at the title of the topic only, here is what I do :
Copy the chart you are working with. This was from e.g. TF1m. Of course (ahem) right away a new result list will show, or else at least a new Stats form (this could be V12 specific and is annoying);
Remove the backtest from the chart (top of the screen).
Change the TF to e.g. TF5m.
Open the Editor from the new chart and run the backtest.This latter is crucial because not intuitive at all. It requires 100 pages of PRT manual and none exist. So find out yourself. 🙁
You will now have two Result Lists and in normal Circumstances two Stats forms. I think this is what you want, because you want to compare TF1m with TF5m. If this is not what you want, then close the editor of the first (TF1m) chart, close the Result List and close the Stats form. Now you can freshly continue.
Want to keep both ? then be careful to always reload the Editor from the cart you want to run a backtest from. Omit this and the one results will show in the list (and Stats) of the other. Consider this part to be full of bugs or too difficult to properly manage (by PRT but also by you). Thus summarized : never click Backtest in the one Editor followed by clicking Backtest in the other. And oh, would you have two different instruments at hand, the same procedure applies. But now you can better see what happens, because suddenly your EUR/USD chart is populated with EUR/GBP data. Remedy : always work with one chart/backtest at the time and when you want to switch, do that vary carefully.Right.
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