TestGenerator: unmatched data error

Does anyone have information about this error from the MQ4 Tester?
TestGenerator: unmatched data error

Cheers,
Pip2

I've never seen this error before. I googled it, but all the results I came up with were in Russian.

Thanks for reply, Tesla, I Googled it too and came up with the same results, Its a first for me too, never seen this before. I went to history center and looked up the data and all seemed ok!

Cheers,
Pip2

Here's my guess, and it's only a guess.

"Unmatched data" might refer to a mismatch between pricing for two or more periods. Let's say you've got one minute data which says the high and low for a specific period were 1.3050 and 1.3020 and your 15 minute data shows a high and low of 1.3080 and 1.3060, it might make Strategy Tester throw up when trying to simulate ticks. Cleaning out and reimporting your historical data might be a first step here.

I suppose you could also do the smart/easy thing and ask the folks over at MetaQuotes.

Regardless, please post any response or solution that you get. I'm curious.

I would like to participate in the 2007 Automated Championship just to see how my EA will work and if it can be profitable....

I created this article awhile ago about getting accurate backtests from MT4. This is exactly what you're looking for.

http://www.jeremywhittaker.com/2010/...sting-quality/

This is a very good and almost complete explanation of how to obtain good quality MT4 data. One thing I think you neglected to mention is the impact of importing this data on the broker's historical data. I think it should be stressed that this procedure should be done in a separate instance of MT4 that is not being used for other testing or real account purposes. For instance, somebody may have a set of recent broker data for testing a new strategy and once that data is replaced, there is no guarantee that the testing will provide reliable results.

In general, this error can be called unmatched data error and informs the trader that some data in the MT4 chart history doesn't match between different timeframes. For example, if some M1 bar high is 123.45 and H1 bar that contains this M1 bar has high at 123.44, the unmatched data error will be displayed.