When back-testing an expert advisor in MT4 Strategy Tester it is sometimes possible to encounter an error that significantly spoils the quality of testing: TestGenerator: unmatched data error (aaa value xxx.xxx at some.date and price yyy.yyy mismatched) where aaa is either “high” or “low”, xxx.xxx — some price rate and yyy.yyy is some other price rate. In general, this error can be called “unmatched data error” and informs […]
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