Questions from a "dummy" - page 109

[roman epifanov]

Yedelkin:
Yes, I haven't looked at it thoroughly. But you got the gist right :)

FileIsExist() returns the pipe with flag FILE_COMMON

[Yedelkin]

openlive:
FileIsExist() returns the pipe with the flag FILE_COMMON

When tested, does it return?

[DenisR]

In MT5, the possibilities and flexibility of strategy tester settings are much wider than in MT4. However, the vast majority of brokerage companies all over the world still only work with MT4. Is it possible to convert the history, downloaded from a certain brokerage company in MT4 format, to MT5 format in order to run it in the MT5 tester?

[roman epifanov]

Yedelkin:
Does it return when tested?

No, I just checked with a script.

string file_name="primer_massivstarihpatternovdlyaraboty.csv";

   bool com=FileIsExist(
   file_name,  
       FILE_COMMON  
   );
   Print(TerminalInfoString(TERMINAL_COMMONDATA_PATH),com);
 

[Vladimir Gomonov]

DenisR:

In MT5, the possibilities and flexibility of strategy tester settings are much wider than in MT4. However, the vast majority of brokerage companies all over the world still only work with MT4. Is it possible to convert the history, downloaded from a certain brokerage company in MT4 format, to MT5 format in order to feed it to the MT5 Strategy Tester?

You cannot do it directly. You cannot. MetaQuotes Software Corp. is against it. // I think it is wrong, but they may know better.

There is one rather time consuming option - to use math mode. If it's not too much trouble, give it a try.

[Vladimir Gomonov]

openlive:
FileIsExist() returns the pipe with flag FILE_COMMON

I have a vague suspicion that files have nothing to do with it. Perhaps the tester doesn't want to test your EA for another reason. What does it say in the logs?

[roman epifanov]

FileIsExist() in the tester too

[Vladimir Gomonov]

openlive:
FileIsExist() in the tester too

Exactly.

[roman epifanov]

MetaDriver:
I have a vague suspicion that the files have nothing to do with it. Maybe the tester doesn't want to test your EA for another reason. What does it say in the log?

2012.02.26 10:57:51 Tester quality of analyzed history is 100%
2012.02.26 10:57:51 Core 1 EURUSD,H1: testing of experts\pattern10000.ex5 from 2009.12.01 00:00 to 2012.02.10 00:00 started
26 10:57:51 Core 1 EURUSD,H1 (MetaQuotes-Demo): 1 minutes OHLC ticks
2012.02.26 10:57:51 Core 1 EURUSD: history synchronized from 1971.01.04 to 2012.02.10
2012.02.26 10:57:51 Core 1 EURUSD: load 27 bytes of history data to synchronize
2012.02.02.26 10:57:51 Core 1 EURUSD: symbol tick base found
2012.02.26 10:57:51 Core 1 Intel Atom N450 @ 1.66GHz, 1013 MB
2012.02.26 10:57:51 Core 1 33 Kb of total initialization data received
2012.02.02.26 10:57:51 Core 1 successfully initialized
2012.02.26 10:57:51 Core 1 initial deposit 3000.00 USD, leverage 1:100
2012.02.26 10:57:51 Core 1 expert file added: Experts\pattern10000.ex5. 33944 bytes loaded
2012.02.26 10:57:50 Core 1 common synchronization completed
2012.02.26 10:57:50 Tester EURUSD,H1 (MetaQuotes-Demo): testing of Experts\pattern10000.ex5 from 2009.12.01 00:00 to 2012.02.10 00:00
2012.02.26 10:57:49 Core 1 authorized (agent build 597)
2012.02.26 10:57:49 Core 1 connected
2012.02.26 10:57:49 Core 1 connecting to 127.0.0.1:3000

[Yedelkin]

openlive:

No, I just checked it with a script.

I assumed that a check like this would be inserted into OnInit(), then the code would be run for testing, the results of which "we'll see".

string file_name="primer_massivstarihpatternovdlyaraboty.csv";
if(FileIsExist(file_name,FILE_COMMON)
  {
   ResetLastError();
   handle=FileOpen(...);
   switch(handle)
     {
      case INVALID_HANDLE: 
           Print("error = ",_LastError);
           return(-1);
     }
  }  
else 
  {
   Print(file_name," не найден в ",TerminalInfoString(TERMINAL_COMMONDATA_PATH));
   return(-2);
  }