What is the most accurate way to Backtest using MT4 (BUILD 202)??

Every Tick, Control Points, or Open Prices Only?? Also how accurate is it? Does it depend on the broker?? I use Interbank FX.

IT should be every tick and you would need full 1m history. So quality of testing should be 90%. Testing is not perfect but still good enough. Anything below 90% - it would be too far from real life...

I have an EA that performs rather well on M1 timeframes in backtests of that timeframe with 25% modeling quality all using MT4 build 202 with historical data downloaded through the history center.

But I am puzzled by the fact that when I put it to forward testing and it seems to be doing almost exactly as the backtest. I thought that historical data modeling quality could play a major role. But apparently, for the M1 timeframe, the modeling quality is not a big deal because it is the lowest timeframe possible (except if we consider tick data).

However, I am still a bit skeptical about this simply because all my online friends -also MT4 savvy programmers- are urging me to enhance the modeling quality to 90% for the M1 frame. I'm not sure I need to do that. Do you think there is any need to have such high modeling quality for this smallest timeframe?

Of course, I also read this topic:"MQL4: One-Minute Data Modelling Quality Rating" , which explains that 25% modeling qualit for M1 is the furthest I could -or need to- get.

Thanks for your clarification in advance.

IMO... i dont think there is any need to have such high modeling quality for this smallest timeframe...

others may disagree though

You can't get 90% modelling quality using M1. 25% is max. It's in the documentation I think.

Do not use data through history center for your testing. Download the Alpari data. My understanding is that its generated all the time and fed to a file which you can download. So presuming 100% uptime, it is as good as you'll get. The source of the history center data is unknown.

hello traders

i`m a question about backtesting with M1 , can anyone confirm that is correct i can backtest in timeframe 1M with model "every tick" OR "control points" because it`s the same result of backtesting???
many traders said model -"control points" is wrong backtest but is this also right for control points with timeframe 1M ??

thanks for information

forex2006

The most precise method is "every tick". Meaning it's always safer to choose "every tick". However the maximum you can get on 1M timeframe is 25% quality.



Cheers,
Diam0nd




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Dear Traders,

I have a question on backtesting on data imported from Alpari databank data to Interbankfx platform and FXDD platform.

I run 3 platforms and find that there's some minor difference of data stream on Alpari, Interbankfx and FXDD platforms.
I want to backtest my EA for a longer period of time, and only managed to find the Alpari databank data which starts from mid 2004.
Will there be any problem if I import Alpari data on Interbankfx and FXDD platform? Will the original Interbankfx and FXDD data be contaminated? I mean will the optimized EA settings that work on Alpari also work on Interbankfx and FXDD? I worry that there maybe huge difference between the live Interbankfx, FXDD data and the Alpari data that I backtest my EA...
Apart from Alpari, is there a historical databank for Interbankfx, FXDD or other brokers?
Also there's this server time difference problem I mentioned on other posts...I now started to worry about the validity of the backtesting results, even with everyticket mode...

IBFX data look similar to Alpari. Is it not? You can always take short period data and compare in backtesting.
Alpari has lower spreads than ibfx, 3 on gbpusd against 4+(ibfx)

I testing EA with trading hour..
Settings with another hour... identical result.

Coded by Mikroskop?

and second example

Goblin 1.2 backtest and forward test...

Attached Images

	st.gif (79.5 KB, 208 views)
	st1.gif (76.0 KB, 198 views)
	goblin--backtest.gif (6.0 KB, 207 views)
	DetailedStatement.gif (5.0 KB, 187 views)

Attached Files

goblin--backtest.htm (10.0 KB, 77 views)

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