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Call a Script

  • #1
  • First Post: May 2, 2007 1:54pm May 2, 2007 1:54pm
Anyone here know how to call a script from an EA ?

if (TimeCurrent() > UpdateFiles) {
"RUN THE UPDATE SCRIPT HERE";
}


Thanks,

KK
Keep it simple stoopid....
  • #2
  • May 2, 2007 5:24pm May 2, 2007 5:24pm
nobody???
Keep it simple stoopid....
  • #3
  • May 2, 2007 8:22pm May 2, 2007 8:22pm
I'm not aware that it's possible to call a script or another EA from an EA. You could call a DLL function, though.
  • #4
  • May 3, 2007 4:06pm May 3, 2007 4:06pm
HOW ? There has got to be a way?
Keep it simple stoopid....
  • #5
  • May 3, 2007 4:37pm May 3, 2007 4:37pm
Quoting Kurka Fund
Anyone here know how to call a script from an EA ?

if (TimeCurrent() > UpdateFiles) {
"RUN THE UPDATE SCRIPT HERE";
}


Thanks,

KK
You can assign a hotkey to your script, and then have your EA simulate 'pressing' the hotkey which will trigger your script to run as a process outside of your EA. That way the EA and the script are independent of each other.

This should give you a 'poor mans' version of multi threading in Metatrader.

There are script for 'pressing' keys throughout the forum.

-Juan
Pippin' ain't easy.
  • #6
  • May 4, 2007 9:18am May 4, 2007 9:18am
Now that is "out of the box" thinking. I love it. Thanks, Juan!

Quoting jhernandez
You can assign a hotkey to your script, and then have your EA simulate 'pressing' the hotkey which will trigger your script to run as a process outside of your EA. That way the EA and the script are independent of each other.

This should give you a 'poor mans' version of multi threading in Metatrader.

There are script for 'pressing' keys throughout the forum.

-Juan
  • #7
  • May 4, 2007 9:25am May 4, 2007 9:25am
Just out of morbid curiousity, why would you want to run a script?

Wouldn't you be better off moving your logic from your script into a single function in a library file, and then importing the file in a script (for 1 time usage) and into an EA (for per tick analysis)?

Is there something a script can do that an EA can't?

(I guess this is the programmer in me talking...use libraries and import when necessary)

Quoting Kurka Fund
HOW ? There has got to be a way?
  • #8
  • May 4, 2007 11:05am May 4, 2007 11:05am
Quoting mrmikal
Just out of morbid curiousity, why would you want to run a script?

Wouldn't you be better off moving your logic from your script into a single function in a library file, and then importing the file in a script (for 1 time usage) and into an EA (for per tick analysis)?

Is there something a script can do that an EA can't?

(I guess this is the programmer in me talking...use libraries and import when necessary)
There was another thread where someone wanted to do something similar. I asked the poster the same thing "why not just use an include file", he told me that his script could take a while to do its logic and he potentially wanted it to run several times in a loop for a specified period of time.

I.e. The EA fires off the script when the price gets to a certain point, the script then runs for the next 60 seconds constantly looking for followup signals.

There can be other clever uses for firing off a script in this fashion. Metatrader is surprisingly robust for these sorts of things.
Pippin' ain't easy.
  • #9
  • May 4, 2007 11:16am May 4, 2007 11:16am
So, for multi-threading purposes. Ok...makes sense.

Quoting jhernandez
There was another thread where someone wanted to do something similar. I asked the poster the same thing "why not just use an include file", he told me that his script could take a while to do its logic and he potentially wanted it to run several times in a loop for a specified period of time.

I.e. The EA fires off the script when the price gets to a certain point, the script then runs for the next 60 seconds constantly looking for followup signals.

There can be other clever uses for firing off a script in this fashion. Metatrader is surprisingly robust for these sorts of things.
  • #10
  • May 5, 2007 1:43pm May 5, 2007 1:43pm
Im not trying to get fancy, I just have a script that i need to run once a day. It would be nice to make the EA trigger it before it turns off for the day.... Anyone ???
Keep it simple stoopid....
  • #11
  • May 5, 2007 5:34pm May 5, 2007 5:34pm
the only way to call a script from an ea is with a hotkey

the problem is you cant pass any info to it

my team has beat this thing to death. we thought it would be nice to hand stuff off to a script and keep the ea clean, sort of like multi threading

but alas, mt4 was not up for the challenge.

on a further note, we have proven that mt4 cant backtest within 200% reliability even at 99% modeling.

look for a different platform
  • #12
  • May 5, 2007 5:51pm May 5, 2007 5:51pm
I use FILES to pass parameters between EA/Script/Indicators around.

ie.

I have all the EA, Scripts running in place already. The slave process in standby. When the master EA wants to call or have the script process something, it will create a file with all the parameters therein. The Script opens the file and process accordingly.

With this method, I can have as many EA running around; I can have my Charts focused or unfocused or even minimized.

One of the simple EA-Script combo i use is an Audible+Email Alarm Script.

Hotkey sounds simpler. But I wonder if it would work if your charts is not focused? ie, you want it to execute on GBPUSD but the chart on focus is USDJPY.
  • #13
  • Last Post: May 5, 2007 9:32pm May 5, 2007 9:32pm
Quoting BurgerKing
I use FILES to pass parameters between EA/Script/Indicators around.

ie.

I have all the EA, Scripts running in place already. The slave process in standby. When the master EA wants to call or have the script process something, it will create a file with all the parameters therein. The Script opens the file and process accordingly.

With this method, I can have as many EA running around; I can have my Charts focused or unfocused or even minimized.

One of the simple EA-Script combo i use is an Audible+Email Alarm Script.

Hotkey sounds simpler. But I wonder if it would work if your charts is not focused? ie, you want it to execute on GBPUSD but the chart on focus is USDJPY.

your a genius thanks!
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