Updating EA Before Next Tick | Page 2 | Forex Factory

Options

Go to
Permalinks
Print Thread

Similar Threads

Tick Size, Tick Rate, Tick Spread, and Tick Logger indicators 36 replies

Tick by Tick trading? 5 replies

To Tick or not to Tick? (any strategy here?) 7 replies

download data tick by tick ??? help 1 reply

Attachments: Updating EA Before Next Tick
Exit Attachments

Updating EA Before Next Tick

  • #21
  • Mar 13, 2010 12:19am Mar 13, 2010 12:19am
Okay, I put the MotherFunction() (hmm ... why does that sound like a dirty word? ) in init() and left the start() function empty, but I couldn't open the Properties box after loading the EA. So I deleted the start() function and got an error message when I tried compiling it saying it couldn't find the start() function and couldn't be run.

So, I put the MotherFunction() back in the start() function and it compiled okay, the EA loaded okay and, I could open the Properties box. So, it looks like I'll have to wait until Sunday to test it.
  • #22
  • Mar 13, 2010 2:17am Mar 13, 2010 2:17am
Quoting ecTrade
Okay, I put the MotherFunction() (hmm ... why does that sound like a dirty word? )
Lol, very funny. Change it to FatherFunction() and see if it help.
  • #23
  • Mar 13, 2010 3:58am Mar 13, 2010 3:58am
Quoting ecTrade
Okay, I put the MotherFunction() (hmm ... why does that sound like a dirty word? ) in init() and left the start() function empty, but I couldn't open the Properties box after loading the EA. So I deleted the start() function and got an error message when I tried compiling it saying it couldn't find the start() function and couldn't be run.

So, I put the MotherFunction() back in the start() function and it compiled okay, the EA loaded okay and, I could open the Properties box. So, it looks like I'll have to wait until Sunday to test it.

That was the problem I had with the EA, I suggest you take 7bit's advice and put the mother function in the start function. The 'error message' you got was a warning, similar to including a function in the EA which is not used.
  • #24
  • Mar 13, 2010 3:59am Mar 13, 2010 3:59am
Quoting Kenz987
Ron, move the EA to the scripts folder, it will run when activated even on weekends.
That's a potential possibility, except you can't backtest a script =)
  • #25
  • Mar 13, 2010 10:30am Mar 13, 2010 10:30am
Ron, Guess I misunderstood your question - you also don't need a live tick to backtest, so I'm confused...
  • #26
  • Mar 13, 2010 2:05pm Mar 13, 2010 2:05pm
Self-optimizing EA has a primitive backtesting engine in it at best, same one used in Old Dogs with New Tricks

Strategy Tester backtest--although not always accurate--is still loads better than the backtesting engine, and thus why I want to have backtests run on that.
  • #27
  • Mar 14, 2010 8:09am Mar 14, 2010 8:09am
Quoting Ronald Raygun
Is there any way I can somehow call the start function during the weekends?
There is. Search for the PostMessage() trick that is found for example in the renko scripts and in other scripts that deal with offline charts.

You modify it so that it will post the message not to an offline chart but to the live chart itself and call it once at the end of the init() function. This will generate one (fake) tick that comes immediately after init() and will trigger start(). PostMessage() will queue the message in the windows message queue and not wait for it to be processed, so init() can properly return and the tick that will finally trigger start() will come a few milliseconds later.
  • #28
  • Mar 14, 2010 5:21pm Mar 14, 2010 5:21pm
Quoting ecTrade
Okay, I put the MotherFunction() (hmm ... why...
Quoting Ronald Raygun
That was the problem I had with the EA, I suggest you take 7bit's advice and put the mother function in the start function. The 'error message' you got was a warning, similar to including a function in the EA which is not used.
Oh well, the market's just opened and I'm basically having the same problem. The EA loads okay but, once it's initialized I can't open the properties box. Maybe if I change it so it only updates every half a second or so? Like I said before, it's a lot better than having to wait 5 or 10 minutes sometimes.
  • #29
  • Mar 14, 2010 5:35pm Mar 14, 2010 5:35pm
Nope, that doesn't work either. I even set the delay to 10 seconds (10,000 milliseconds) but still no luck.

Of course if I set the properties beforehand and leave it to run automatically, and am satisfied with the settings, that may be all that's necessary, at least for now. Will see how that works.
  • #30
  • Mar 16, 2010 5:31pm Mar 16, 2010 5:31pm
So, is there anyway to manually "refresh" the chart and/or EA through the keyboard or whatnot?
  • #31
  • Mar 16, 2010 6:56pm Mar 16, 2010 6:56pm
hey ectrade..... stayed out of this cause my views and experiences seemed to differ from what was posted above and was courious how it would all play out.....

yes, some whatnot's might work.... i force a tick..... you can set a key board hot key..... check my post here to lou..... perhaps this is what 7bit was refering to....

http://www.forexfactory.com/showthre...=199285&page=5

//----- however----

really not sure of your goal, but i have ea's running on single charts that monitor hundreds and hundreds of orders at time on all pairs and timeframes.... they open and close orders on a wide range of differing triggers, move trailing stops, close all if a totalprofit target or a maxloss limit is hit per pair or account and so on and so on.....

as long as they are on an active pair, updating has never been a problem.... they update and run perfectly...... the totals are easily verified by comparing the on screen graphics to the actual account profit/loss in the terminal..... there might be a few cents difference, but not enough to be concerned about.......

have you tried attaching to an active pair and verifying the ea's totals..... you might not need the 'extra' tick.....h
Attached Image (click to enlarge)
Click to Enlarge Name: ectrade.gif Size: 61 KB
to trade and code, keep both simple... no call to impress....h
  • #32
  • Edited 7:58pm Mar 16, 2010 7:42pm | Edited 7:58pm
Yeah, well, I figured the EURUSD was a pretty "active" pair, and opted to go for that if nothing else. I just know there are times when it takes 5 or 10 minutes (or more) for the next tick. This is my main concern. As for the manual reset, I'm just looking for a means of expediting the Close All and Suspend functions (or other mod options) for whatever reason.

Also, the "auto-refresh" appears to be working, it's just that once it's initialized, I can't access it through the properties box. However, I was thinking I could create two versions, one where it auto-refreshes, and possibly set it up as a script (I don't know, can you do that?), and the other where you have access to the properties box, and make all the necessary adjustments and settings there. And, if any adjustments need to be made to the automated part, it could be communicated through globals. In fact it seems you mentioned something like this to me once before or, it was very similar.

So, can I convert the automated one into a script and, would it be possible to call it up through the (accessible) EA? I haven't really worked with scripts before, so I don't know?

Oh, I was thinking if I converted the one into a script, I could call both up on the same chart, and not have to open a second chart.
  • #33
  • Mar 16, 2010 9:08pm Mar 16, 2010 9:08pm
hey clay...... 5 or 10 minutes (or more) ain't going to get it...... that will wreak havoc with not only ea's but indicators as well..... neither will be trustworthy...... didn't realize the lag was that extreme.....

when controlling multiple pairs, anything over a minute between ticks would be unacceptable......


what are you refering to by the "auto-refresh" .......h
to trade and code, keep both simple... no call to impress....h
  • #34
  • Mar 16, 2010 9:19pm Mar 16, 2010 9:19pm
Well, 5 or 10 minutes is an extreme example, of course but, I have seen it sit there for long periods of time.

By "auto-refresh," I am referring to 7bit's code ...

Inserted Code
int init(){
}

int start(){
   MotherFunction();
}

void MotherFunction(){
   while(true){
      RefreshRates();

      // do your stuff here

      Sleep(100);
   }
}
In fact I added it and, it appears to work, except that, like I say, I can't access the properties box. So, I can't make any adjustments if I need to do.
  • #35
  • Mar 16, 2010 9:50pm Mar 16, 2010 9:50pm
hey clay..... 7bit surely knows far more than me, but personally i can't see that working effectively..... not being able to access the properties box is a good indication......

no doubt it would not be my prefered method......h
to trade and code, keep both simple... no call to impress....h
  • #36
  • Mar 16, 2010 10:14pm Mar 16, 2010 10:14pm
This is why I wanted to know if I could incorporate the auto-refresh part into a script and, if nothing else, have it issue a global that tells all EA's that receive it, to perform a Close_All within the EA itself. I would use the main EA, however, as an interface, and a way to modify and make the necessary adjustments.

And no, 7bit hadn't actually tried it himself or, didn't realize I needed access to the properties box.
  • #37
  • Mar 16, 2010 10:24pm Mar 16, 2010 10:24pm
Okay so, if just put the EA into the scripts folder, and call it up from there, would it act as a script? ... and at least issue the "global" I'm referring to?

Of course you may also need a way to reset it or, set it's parameters externally (through the EA). Is that possible?
  • #38
  • Mar 16, 2010 10:46pm Mar 16, 2010 10:46pm
hey ectrade..... 7bit might be able to answer that better..... .....

i'm not sure the code will work effectively..... either as a script or ea......
//-----

just for my reference, all your really wanting is for the 'profit monitor' in post 1 to have the most current bid/ask quotes so it can accurately total the profit associated with all those magic numbers..... correct?.....


does the 'profit monitor' work..... has it closed trades in real trading....h
to trade and code, keep both simple... no call to impress....h
  • #39
  • Edited Mar 17, 2010 6:51pm Mar 16, 2010 11:24pm | Edited Mar 17, 2010 6:51pm
Quoting hayseed
just for my reference, all your really wanting is for the 'profit monitor' in post 1 to have the most current bid/ask quotes so it can accurately total the profit associated with all those magic numbers..... correct?.....
Yeah, well, I was saying that would be better than nothing. At the same time, I was hoping these actions could be performed in "real" time.

Quote
does the 'profit monitor' work..... has it closed trades in real trading....h
Actually I tried it without the auto-refresh, and had about 7 pairs open but, I never reached the target, so I don't know for sure? I don't see why it shouldn't though. Everything else worked as it should.

I also tried it with the auto-refresh, but again, it never reached the target. It was continually updating the overall price the way it was supposed to though. So I'm assuming it would have worked.
  • #40
  • Mar 17, 2010 1:50pm Mar 17, 2010 1:50pm
Okay, so how do you know that you have a script running in the background? Or, how do you check to see if it's there? I think this is what happened. I tried to convert this EA into a script a few days ago, and thought I deleted it, but I'm not sure I did? And now, every so often, just out of the middle of nowhere, all the open orders get canceled. I suspect I didn't get rid of the script, I don't know how to check to see if it's there?

Oh well, I just closed out all the charts and am starting over. Hopefully it won't happen again. It's already happened four or five times. As a result, I'm out about 10 bucks (on live account). It's getting kind of irritating!
0 traders viewing now