Need MQ4 examples of logic that chooses the pair to trade

Can someone please give me some example eas / code where the order symbol is determined inside the logic of the EA? Basically, I have an idea for an ea which examines data from many currencies and, after doing some math, determines which two currencies to trade as one single pair (if that pair is available from the broker). I do not, however, have any idea what I'm doing in terms of automating it. I wrote a script already to do the math, but pulling the data I want from those calculations (2 currencies like JPY and USD based on int values) and telling MT4 to execute an order based on those pairs (USDJPY as opposed to JPYUSD) leaves me high and dry. I'm sorry if this is the wrong place but, like I said, I have no idea what I'm doing.

Thanks..

You are asking for a very unique kind of EA. Most EAs are written to work on the pair that the EA is run on. So for instnace if you trigger a trade using a MA crossover, the trade is taken on the chart where the EA is running and only that pair. Depending on the rules other currencies could take a trade if a crossover happens later on or not.

What you want to do is possible, but probably should not be done until you have more experience with MT4.

Thanks, CM. I understand this is advanced. AIMHIGHER gave me an example here but I'd love to see another one or two because I'm having trouble making sense of that one. My style is, unfortunately, to bite off way more than I can chew and then just chew it. If you know someone who can do this in a reasonable amount of time, I might be willing to pay for it. I've got all the details and the initial mq4 script to do the math. I just need to be able to backtest it mechanically. Thanks for the response.

Unfortunately Strategy Tester only allows for single currency testing, so I don't think what you want will work, unless I misunderstand.

Yeah you're right. Frustrating. I guess I'll only be demo testing it. If anyone has any pieces of relevant code, I'd really appreciate it. Thanks CM.

there are lots of examples for multipair-stuff (reading all pairs automatically, enter the pairs you want to deal with as external parameter, etc.)

Clearly I do not know where or how to find them. Any help would be appreciated. Thanks.

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Maybe one of the css-indicators :
http://www.forexfactory.com/showthre...12#post6899712

I think this ea does it:
http://www.stevehopwoodforex.com/php...hp?f=37&t=2443

If you have figured out what pair you want to trade, you tell mt4 to do so by using one of the trading functions: http://docs.mql4.com/trading

And if you want to trade a reverse pair (i.e. JPYUSD instead of the available USDJPY), you simply do the opposite trade with the available pair.

ra457,

I put together a quick sample EA that you hopefully can build on. Take a look at the code and get back to me if something doesn't make sense.

Currently the EA is set to send a limit order based on the provided buy and sell currencies. So it sends a sell limit order for AUDUSD if the sell currency is AUD and the buy currency is USD while it would send a buy limit order for USDJPY if the sell currency is JPY and the buy currency is USD.

All pending orders for the specified magic number are deleted on deinit().

This EA is be no means ready to use for trading since it does not have any error handling logic, does not set stop loss and take profit but I think it has enough details that you should be able to plug your script in to get the buy and sell currencies and then use the rest to generate valid orders.

Aim

Wow... thank you, Aim. I'm going to tear this apart and see if I can get it goin. I really appreciate it, man. I'll let you know how it goes and thank you again. -R