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My EA Gift to Traders

  • #401
  • Feb 7, 2015 7:46pm Feb 7, 2015 7:46pm
Quoting Dave_C
{quote} I have reproduced your chart as closely as possible on my platform and have no such problem. The only thing I can deduce is that the EA you are using is an older version so could you please check very carefully that you are using the EA from Post #386 (It must be in the correct directory) You also indicated a sell trigger and a buy trigger. They are not triggers because a trade is still on. Your set file has a TradeClosureMode of 0. If you had wanted those signals...
Hi Dave,

I see why we're getting different results. I just tested using "open prices" only and got the same results as you.

However, I was using the "every tick" method. Remember, it's when I moved to testing using the every tick method that I began encountering the problem.

So please try it again with the every tick setting and you should see what I'm seeing.

drofwarc
  • #402
  • Feb 7, 2015 7:52pm Feb 7, 2015 7:52pm
Quoting drofwarc
{quote} Hi Dave, I see why we're getting different results. I just tested using "open prices" only and got the same results as you. However, I was using the "every tick" method. Remember, it's when I moved to testing using the every tick method that I began encountering the problem. So please try it again with the every tick setting and you should see what I'm seeing. drofwarc
You can't use every tick method because the EA is being controlled on the nominated time frame close prices. Every tick creates a close price on every tick.
  • #403
  • Feb 7, 2015 8:01pm Feb 7, 2015 8:01pm
Quoting Dave_C
{quote} You can't use every tick method because the EA is being controlled on the nominated time frame close prices. Every tick creates a close price on every tick.
Here is the trade logic for PriceEMA

//+------------------------------------------------------------------+
//| Calculate Price EMA |
//+------------------------------------------------------------------+
void CalcPriceEMA(int ShiftVal)
{
CurrPrice = Open[0];
Close1 = Close[ShiftVal];
Close2 = Close[ShiftVal+1];
if (UseHACandles == 1)
{
Close1 = (Open[ShiftVal]+High[ShiftVal]+Low[ShiftVal]+Close[ShiftVal])/4;
Close2 = (Open[ShiftVal+1]+High[ShiftVal+1]+Low[ShiftVal+1]+Close[ShiftVal+1])/4;
}
CurrFastEMA = NormalizeDouble(iMA(Symbol(),0,SingleEMA,EMAShift,MODE_EMA,PRICE_CLOSE,ShiftVal),7);
PrevFastEMA = NormalizeDouble(iMA(Symbol(),0,SingleEMA,EMAShift,MODE_EMA,PRICE_CLOSE,ShiftVal+1),7);
}
//+------------------------------------------------------------------+
//| Process Buy Price EMA Cross |
//+------------------------------------------------------------------+
void ProcessBuyPriceEMACross()
{
if (Close1 >= CurrFastEMA && Close2 < PrevFastEMA && UsePriceEMAEvent == 1 && PrevPrice != CurrPrice)
{
BuyPriceEMACrossReturnValue = 1;
BuyBarCross = Shift;
PrevPrice = CurrPrice;
}
if (Close1 > CurrFastEMA && UsePriceEMAEvent == 2 && PrevPrice != CurrPrice)
{
BuyPriceEMACrossReturnValue = 1;
BuyBarCross = Shift;
PrevPrice = CurrPrice;
}
}
//+------------------------------------------------------------------+
//| Process Sell Price EMA Cross |
//+------------------------------------------------------------------+
void ProcessSellPriceEMACross()
{
if (Close1 <= CurrFastEMA && Close2 > PrevFastEMA && UsePriceEMAEvent == 1 && PrevPrice != CurrPrice)
{
SellPriceEMACrossReturnValue = 1;
SellBarCross = Shift;
PrevPrice = CurrPrice;
}
if (Close1 < CurrFastEMA && UsePriceEMAEvent == 2 && PrevPrice != CurrPrice)
{
SellPriceEMACrossReturnValue = 1;
SellBarCross = Shift;
PrevPrice = CurrPrice;
}
}

The comparison between PrevPrice and CurrPrice prevents another trade being opened in the same bar.
  • #404
  • Feb 7, 2015 8:06pm Feb 7, 2015 8:06pm
Quoting Dave_C
{quote} You can't use every tick method because the EA is being controlled on the nominated time frame close prices. Every tick creates a close price on every tick.
Well knock me over with a feather. I thought I understood this but apparently not. I was under the impression that every tick was superior, but I see what you mean about creating a close price on every tick.
  • #405
  • Feb 7, 2015 8:11pm Feb 7, 2015 8:11pm
Quoting drofwarc
{quote} Well knock me over with a feather. I thought I understood this but apparently not. I was under the impression that every tick was superior, but I see what you mean about creating a close price on every tick.
See Enclosed. The EA is looking at the previous bar (default setting of all MaxBarsAgo inputs is 1). You can change it to zero, but I would never recommend it!
Attached Image (click to enlarge)
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  • #406
  • Edited 8:48pm Feb 7, 2015 8:24pm | Edited 8:48pm
Quoting Dave_C
{quote} See Enclosed. The EA is looking at the previous bar (default setting of all MaxBarsAgo inputs is 1). You can change it to zero, but I would never recommend it! {image}
I take that the value of testing with tick data is that Strategy Tester uses the tick data to accurately determine take profit and stop levels. Whereas higher timeframe data would leave more room for error. Is that right?

EDIT: By the way, I mean downloading tick data from Dukascopy or elsewhere into the history folder but testing using open prices.
  • #407
  • Feb 7, 2015 8:31pm Feb 7, 2015 8:31pm
Quoting RabbitWolf
{quote} I guess take profit happened before candle close and EA took information from previous candle and opened buy here. I had similar problem with other EA. EA can not think...
The EA can think if you read the last few posts.
  • #408
  • Edited 9:40pm Feb 7, 2015 8:40pm | Edited 9:40pm
Quoting drofwarc
{quote} I take that the value of testing with tick data is that Strategy Tester uses the tick data to accurately determine take profit and stop levels. Whereas higher timeframe data would leave more room for error. Is that right? EDIT: By the way, I mean downloading tick data from Dukascopy or elsewhere into the history folder and but testing using open prices.
Tick data is of no value to TradersGift EA from a graphing point of view. You can use it for back testing and your statement is spot on.
Edit: Having looked at the trade journal you can't use it for back testing because it treats every tick as a bar.

I only pointed to Tickstory because it has an option to automatically convert to other timeframes. I personally am quite happy with 1 minute data as the greatest amount of detail required. I normally back test using the chart timeframe and verify using the tick data option which is simulated from 1 min data.

Edit: Do not use the tick data option for anything other than Straddle or Continuous Straddle (that has been my mistake because the EA explicity controls Opening Prices) and I have since looked at the trade journal for every tick option.
  • #409
  • Feb 7, 2015 8:47pm Feb 7, 2015 8:47pm
Quoting Dave_C
{quote} The EA can think if you read the last few posts.
EA look very good. Did not mean to open my mouth here . Good luck !
  • #410
  • Feb 7, 2015 8:54pm Feb 7, 2015 8:54pm
Quoting Dave_C
{quote} Tick data is of no value to TradersGift EA from a graphing point of view. You can use it for back testing and your statement is spot on. I only pointed to Tickstory because it has an option to automatically convert to other timeframes. I personally am quite happy with 1 minute data as the greatest amount of detail required. I normally back test using the chart timeframe and verify using the tick data option which is simulated from 1 min data.
The download from post #386 is now going to Post #1 having resolved the Price EMA Cross issue.

I'm still looking for input.

I'm still looking for input on CandleSticks and a request for input from Post #393. My next project with be scaling out of positions when in profit mode.

23 users downloaded at Post #386 which had the following caveat. Apathy is alive and well.

Quote: The update below is not a general update but addresses more recent issues of a couple of worthy contributors. Do not download unless you are willing to provide feedback.
  • #411
  • Feb 7, 2015 8:55pm Feb 7, 2015 8:55pm
Quoting Dave_C
{quote} Tick data is of no value to TradersGift EA from a graphing point of view. You can use it for back testing and your statement is spot on. I only pointed to Tickstory because it has an option to automatically convert to other timeframes. I personally am quite happy with 1 minute data as the greatest amount of detail required. I normally back test using the chart timeframe and verify using the tick data option which is simulated from 1 min data.
I'm interested in testing some strategies with stops as small as 10 pips, so I think tick data would be necessary to provide the required detail.

I don't understand what you mean by this: "verify using the tick data option."

Isn't that the opposite of what you said earlier?: "EA is being controlled on the nominated time frame close prices. Every tick creates a close price on every tick."
  • #412
  • Edited 9:36pm Feb 7, 2015 8:59pm | Edited 9:36pm
Quoting drofwarc
{quote} I'm interested in testing some strategies with stops as small as 10 pips, so I think tick data would be necessary to provide the required detail. I don't understand what you mean by this: "verify using the tick data option." Isn't that the opposite of what you said earlier?: "EA is being controlled on the nominated time frame close prices. Every tick creates a close price on every tick."
quote: Tick data is of no value to TradersGift EA from a graphing point of view. Post #407

Edit: Tick data should not be used at all because the EA is predicated on the previous bar values (except for the Straddle). I just looked at the trade journal from the every tick option. The statement "verify using the tick data option", I realise is now incorrect, having looked at the trade journal.

It treats a tick as a bar and it's purpose is to make immediate decisions. Traders Gift only makes decisions on the timeframe of the chart to which it is attached. The EA explicitly controls bar opening. see Post #404.

Continuous Straddle is one example of a strategy that is suited to the every tick option as it is not controlled by bar opening (which in reality is previous bar close).
  • #413
  • Feb 7, 2015 9:32pm Feb 7, 2015 9:32pm
Quoting Dave_C
{quote} quote: Tick data is of no value to TradersGift EA from a graphing point of view. Post #407 Edit: Tick data should not be used at all because the EA is predicated on the previous bar values (except for the Straddle). I just looked at the trade journal from the every tick option. It treats a tick as a bar and it's purpose is to make immediate decisions. Traders Gift only makes decisions on the timeframe of the chart to which it is attached. The EA explicitly controls bar opening. see Post...
Dave,

Responding to your edit: That's what was confusing me. I thought you were contradicting your earlier statement.

Obviously I need to go deeper down the rabbit hole to fully understand my backtesting options.

Thanks for being so patient with me. I'll let you get back to focusing on your EA and putting out the next version.

Kind regards,
drofwarc
  • #414
  • Feb 7, 2015 9:50pm Feb 7, 2015 9:50pm
Quoting drofwarc
{quote} Dave, Responding to your edit: That's what was confusing me. I thought you were contradicting your earlier statement. Obviously I need to go deeper down the rabbit hole to fully understand my backtesting options. Thanks for being so patient with me. I'll let you get back to focusing on your EA and putting out the next version. Kind regards, drofwarc
I was in fact contradicting my earlier statement and only realised that when I consulted the trade journal as a result of your observations, so thank you for your observations. I have edited Post 408. I had been disheartened by the back test results myself but never bothered to actually look at the trade journal.

It's a bit disconcerting that MT4 does not allow an option to back test using every tick for EA's that do control opening prices and I will now have to go back and reference each calculation as time frame specific to fix this problem. When you leave the time frame as 0 which I have done, Strategy tester assumes that the time frame is every tick on backtest with every tick. So it may take me a day or 2 to work through this. The thing is most of my Strategies allow for variable timeframes so now I am going to have to create extra inputs to nominate the time frame for calculations.
  • #415
  • Feb 7, 2015 9:58pm Feb 7, 2015 9:58pm
Quoting Dave_C
{quote} I was in fact contradicting my earlier statement and only realised that when I consulted the trade journal as a result of your observations, so thank you for your observations. I have edited Post 408. I had been disheartened by the back test results myself but never bothered to actually look at the trade journal. It's a bit disconcerting that MT4 does not allow an option to back test using every tick for EA's that do control opening prices and I will now have to go back and reference each calculation as time frame specific to fix this problem....
It's great to hear that you're going to enable backtesting on every tick. Traders Gift is incredible already and it's going to be even better. I look forward to testing the revised version.
  • #416
  • Feb 7, 2015 10:04pm Feb 7, 2015 10:04pm
Hi dave

I maybe being stupid here or a bit tired but when using the tester how do you get the chart to show the trades that where taken
  • #417
  • Feb 7, 2015 10:30pm Feb 7, 2015 10:30pm
Quoting nobby911
Hi dave I maybe being stupid here or a bit tired but when using the tester how do you get the chart to show the trades that where taken
Press the Open Chart button
Attached Image (click to enlarge)
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  • #418
  • Feb 7, 2015 10:31pm Feb 7, 2015 10:31pm
Quoting drofwarc
{quote} It's great to hear that you're going to enable backtesting on every tick. Traders Gift is incredible already and it's going to be even better. I look forward to testing the revised version.
Yes its quite a bit of work but I can see it's value.
  • #419
  • Feb 7, 2015 10:37pm Feb 7, 2015 10:37pm
Hi Dave yep tried that on 3 different platforms but this is all i see, i am sure i used to be able to see the trades plotted on the chart
I am looking at the right date range and there was trades excuted in the test

Attached Image (click to enlarge)
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  • #420
  • Feb 7, 2015 10:41pm Feb 7, 2015 10:41pm
Quoting nobby911
Hi Dave yep tried that on 3 different platforms but this is all i see, i am sure i used to be able to see the trades plotted on the chart I am looking at the right date range and there was trades excuted in the test {image}
You are not using the latest download then
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