in order to test my ea ,i download history data from mt4 terminal ,
when i test it ,i find there are several problem with data
1/when use 30min timeframe ,the procession will terminate on 2010/11/20 ,means after that time no data
2/when use h1 TF ,will terminate on 2011/3/25 , it is very interesting ,
yesterday ,i made twice testing on alpril terminal ,the fist test result is resonable and confirm my thought ,get a profitable result with low DD , then i leave the computor , after come back ,i clear the log and test again with the same parameters,this time t got lose result ,the curvor is somelike the profit one ,but is down direction .
i also run it in real time on demo account ,its performance is the same as the profit test results .
i test again and again today ,all the result of all tested EA has the opposite result .
what had happened ?
thank you ,my EA has no special requirement for spread ,so it is not a parameter.
yes ,it will .
but mystratage has filter the large spread .
if(marketin(symblo(),mode_spread)>30) return; its 5 digit plateform .
i think maybe the data is distroyed ,my another computer has the same problem ,
i saw movies on it at the time of testing.
so i want to delete all the data ,can i do it ?
it seems that all currency data had been distroyed ,through i do not use them
at that time .
yes ,it will .
but mystratage has filter the large spread .
if(marketin(symblo(),mode_spread)>30) return; its 5 digit plateform .
i think maybe the data is distroyed ,my another computer has the same problem ,
i saw movies on it at the time of testing.
so i want to delete all the data ,can i do it ?
it seems that all currency data had been distroyed ,through i do not use them
at that time .
You will still get different results if you have a spread of 1 pip versus a spread of 3 pips . . .
You can delete your History data, close down MT4 and navigate to its installed folder and then to the history folder and delete the hst files.
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in order to test my ea ,i download history data from mt4 terminal ,
when i test it ,i find there are several problem with data
1/when use 30min timeframe ,the procession will terminate on 2010/11/20 ,means after that time no data
2/when use h1 TF ,will terminate on 2011/3/25 , it is very interesting ,
yesterday ,i made twice testing on alpril terminal ,the fist test result is resonable and confirm my thought ,get a profitable result with low DD , then i leave the computor , after come back ,i clear the log and test again with the same parameters,this time t got lose result ,the curvor is somelike the profit one ,but is down direction .
i also run it in real time on demo account ,its performance is the same as the profit test results .
i test again and again today ,all the result of all tested EA has the opposite result .
what had happened ?
also ,last year i use test generator ,on two same terminal at the same time ,to test two EAs ,the generators will move on the top of the widow and overlaped .