Testing Multiple Markets

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Hello,

 I am new to MT4, and am wanting to write an Expert Adviser that will be able to take full tick data from multiple markets.  Is this possible?

 

Thanks in advance! 

 
gschmitt99:  Is this possible?
  1. Possible, of course
  2. Do not trade multiple currencies in one EA
    • You can't use any predefined variables, can't use the tester, must poll (not OnTick,) and usually other problems.
    • Code it to trade the chart pair only. Look at the others if you must.
    • Then put it on other charts to trade the other pairs. Done.
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