EA Backtest - Modelling quality

Hi

When I am backtesting some EA, I choose the 'Every tick (the most precise method..)' . The testing is done on 1H timeframe. However when the report is created, it says modelling 'NA'.

How is that? I have seen myself when testing some time ago, the modelling was 90%.

Am I missing something when doing the test?

There are few conversations regarding this topic if you do a search on the forum.

Essentially in order to achieve 90% model quality you need to download M1 data from your broker or from a data provider.

1) Go to http://forextester.com/data/datasources.html and download the archive for the instrument you want to backtest.

2) Unzip the archive for later and keep the .txt file available

3) Go under your MT4 installation folder and delete any data from MT4/history/Demo or MT4/history/account. Any .hst file already existing.

4) Run MT4 CTRL + O and set Proxy server with the 127.0.0.1 address, thus MT4 cannot overwrite any of your clean data.

5) Press F2 and clean up your history M1 - M5 - M15 - H60 - H240 etcs.

6) Once you cleaned all the previous data press "import" and load the .txt file you unzipped before.

7) If everything is fine you should have M1 filled with new data.

8) Open a M1 chart of the same instrument and drop the script "period_converter" and set its input "ExtPeriodMultiplier" to 5 in order to convert M1 to M5

9) Repeat step 8 with the other timeframes to convert:

M15 - type 15
H1 - type 60
H240 - type 240
Daily - type 1440

Close the platform and restart it.

I hope it helps.

Thanks for the reply. I already have downloaded the data from history centre. So it still required to do the above steps?

When you say that you have already downloaded data. Do you mean from the history center by pressing the "Download" button ?
In that case you are using Metaquotes M1 data. I believe is better to use the archive provided by ForexTester.

Once you have imported the data you need to build the other timeframes starting from the M1 data executing the script and changing the parameters as I said.

Good trading.

Yes, I downloaded via history centre.

I will do it as per your method.

Thanks

In case you find any probable watch the video regarding historical data installation.

http://www.easyexpertforex.com/walk-forward-videos.html