Quite often the excellent performance bend in back test turns out to be a completely unpleasant bend in the live-operation.

So it could happen that a profitable system becomes a loss —maker. We have had this experience as well. Well, what are the reasons for this? All the developed steps and decisions are basing on the available and historic data if you are developing a system.

But the available data are not tick-data. Many developers believe that they are developing on the basis of historic real passed benchmark data.

Even Scalping systems which appear virtually fantastic in backt est, fail regularly on this fact. Although of course we are developing our own systems on this basis of available data. Then, after gathering the appropriate forward-test data we either make improvements on that system or decide to reject it. All Backtests are based off the data which had been loaded by Metaquotes Server! The data in the development is based on the provided data by Metaquotes.

In reality this leads to the phenomenon "3 Broker - 3 exchange rates".

99 Percent Modelling Quality Back Test MT4

A system which delivers in Forward-Test at Broker 1 x trades and at Broker 2 y trades is going to deliver at Backtest a totally different number of trades. They work with an established Spread in Backtest. How to get 99 Percent Modelling Quality Back Tests.

This is most likely not important to an expert advisor that uses stoploss and takeprofit targets of over pips, but in the case of robots that attempt to scalp a few pips here and there, your backtest could be completely misleading. So, it is very important to try testing using data having a quality that is as high as possible. How to get 99 Percent Modelling Quality.

Need to do 99% modelling quality backtests Discussion | Myfxbook

How to Optimize an Expert Advisor. EFX Forex Robot does not back test very far and some inputs don't work accurately in back testing such as auto GMT and the news filter. It is also very sluggish in back testing. The results here shown are from enabling martingale in the EFX inputs.

The back tests you see here basically got "lucky" and did not crash. That is all it is EFX also trades without martingale and might perform better on a combination of currency pairs just aiming for 20 - 25 pips a day. Multi-pair back testing is not possible.

Click on the images to see back test results AUDUSD EURUSD GBPUSD USDJPY GBPJPY EFX Forex Robot FAQ Contact Members Login SiteMap - Copyright. EFX Forex Robot FAQ Contact Members Login SiteMap. How to get 99 Percent Modelling Quality http: Tick Data Suite http: Click on the images to see back test results AUDUSD EURUSD GBPUSD USDJPY GBPJPY.