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Running mutliple EA help

  • #1
  • First Post: Feb 23, 2009 9:25am Feb 23, 2009 9:25am
How can I change the above code to allow an EA to trade only 1 trade per currency pair but still allow it to trade other pairs?? Also, I want to run multiple EA’s and allow the other EA’s to make their trades as well. I'm guessing that I need the code shown below to check against the magic number and currency pairs. Does someone have an example of this?
Inserted Code
      {
 
         total=OrdersTotal();
         orders=0;
         for(cnt=0;cnt<total;cnt++)
         {
            OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
            if(OrderSymbol()==Symbol()) orders++;
         }         
         if(total < 1)
         {
  • #2
  • Feb 23, 2009 9:47am Feb 23, 2009 9:47am
The code you posted will only trade on the current chart (see the Symbol() reference). So, why don't you just run the same EA on multiple charts with different pairs?
  • #3
  • Feb 23, 2009 9:52am Feb 23, 2009 9:52am
Thanks for the reply!!!

I am running it on different charts… but it still will only place 1 trade at a time. What I want to be able to do is have the EA run only 1 trade per currency pair, and also I am planning on running a different EA on the same pairs but different strategy and I don’t want it restricted if the other EA already has a trade in.
  • #4
  • Last Post: Feb 23, 2009 10:34am Feb 23, 2009 10:34am
all my EAs uses this piece of code to check.

Inserted Code
bool DecideToOpenTrade()
{
   int total = OrdersTotal();
   if (total > 0)
   {
      for(int cnt=0;cnt<total;cnt++)
      {
         if(OrderSelect(cnt,SELECT_BY_POS))
         {
            if(OrderSymbol()==Symbol() && OrderMagicNumber() == EA_MAGIC_NUM)
            {
               return (false);
            }
         }
      }
   }
   // in case trades has already opened and closed within the candle
   int histotal = OrdersHistoryTotal();
   if (histotal > 0)
   {
      for(cnt=0;cnt<histotal;cnt++)
      {
         if(OrderSelect(cnt,SELECT_BY_POS,MODE_HISTORY))
         {
            if(OrderSymbol()==Symbol() && OrderMagicNumber() == EA_MAGIC_NUM)
            {
               if (Time[0] <= OrderOpenTime()) // don't open a new position if we're still on the same candle
               {
                  return (false);
               }
            }
         }
      }
   }
   return (true);
}

if your signal tells you to open trade, and this function returns true, go ahead and open, if not, don't do anything. EA_MAGIC_NUM should be an extern int value you can set. and it should be unique for other EAs running on the same currency pair.

Hope this helps.

regards,
Zen
Programming for a better future.
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