back test LoadMoreHistory or LoadMoreHistoryAsync.

PanagiotisCharalampous
29 Mar 2021, 10:13

Hi yuval.ein,

No there was no change.

Best Regards,

Panagiotis 

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eynt
29 Mar 2021, 11:26

RE:

Is it panned for a future version? Is there a feature I can vote for? If not, hoe can I submit a feature request?

Thanks

eynt
31 Mar 2021, 10:31

RE: RE:

?

amusleh
31 Mar 2021, 10:56

RE: RE:

yuval.ein said:

Is it panned for a future version? Is there a feature I can vote for? If not, hoe can I submit a feature request?

 

Thanks

 

You can open a thread on suggestions section, but your request is not that useful because when you back test you know how much data is available and there is no need to call load more history as all your backtest data will be loaded and no more or less, during live market condition its useful because you don't know the exact amount of available data so you can ask to load more if you need more data.

eynt
31 Mar 2021, 21:31

RE: RE: RE:

Of course it is useful. If I start running a back test from a specific date, I will need a certain amount of past data before that date. This amount (bars or days) is not always known and can be decided when starting the back test. For example, on the start of my cBot I will keep calling LoadMoreHistory until a specific condition is filled. The amount of times I will call the function (and as a result the bars count loaded) is not fixed and can be changed according to market conditions.

JerryTrader
06 Apr 2021, 19:25

I think I got a similar issue due to a lack of history during backtest.

I have a complex multitimeframe indicator. 
I use it on M5 and it draws a dozen of [Output] from a referenced indicator used in M30.
Every outputs are well displayed in the cTrader Automate Indicator tab, as well as the cBot tab on a live instance, and in the cTrader Trade section.

But when I want to backtest a bot and display my indicator on the backtested chart, my outputs are not displayed before 11-Feb-21.
 

From the below code, I figured out that I'm missing data before this date.

Bars _trendFilterBars = MarketData.GetBars(TimeFrame.Minute30);

// This returns "11-Feb-21 13:30:00"
var firstMtfOpenTime = _trendFilterBars.OpenTime[0];

I guess this is a good example of why LoadMoreHistory could be useful, even on the backtest part.

eynt
06 Apr 2021, 20:08

RE:

I've added a feature suggestion. Please vote for it on the following link:

cTDN Forum - Load more History on Backtest (ctrader.com)