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Thread: PentzParabolic v1.0

  1. #41

    Default PentzParabolic v1.3

    Quote Originally Posted by philippe07024 View Post
    After checking, it seems that your EA does not work well with brokers which have minimum lots of 0.1 and require steps or 0.1.
    I checked on various demo accounts with Metatrader the values of:
    MarketInfo(Symbol(),MODE_MINLOT) Minimum permitted amount of a lot.
    MarketInfo(Symbol(),MODE_LOTSTEP) Step for changing lots.

    Backtesting from 12/13 to 12/17 (I am in Eastern time), EURUSD, H1, leaving all parameters to default in version 1.1 of your EA (including AutoLotSize to true) starting with $10K, I get:
    MINLOT: 0.1 and LOTSTEP: 0.1 for
    -FXCM. Net Profit: -$2,445.40, 22 trades, no error (besides error 1). Several errors 130 and 4051
    -FXOpen regular demo account (not mini). Net Profit: -$4,146.4, 22 trades, no error (besides error 1). Several errors 130
    MINLOT: 0.01 and LOTSTEP: 0.01 for
    -FXDD. Net Profit: $1,317.47, 20 trades, no error (besides error 1).
    -Alpari UK. Net Profit: $1,316.81, 21 trades, no error (besides error 1).
    MINLOT: 0.1 and LOTSTEP: 0.01 for
    -Alpari US. No trades. Several errors 131
    Here is version 1.3 that fixes the problem you were having with Alpari US. Most brokers have the same lotstep and minlot sizes, but Alpari US doesn't so that's what was causing the errors. This version also uses DonAdams suggestion of getting rid of all the different Magic Numbers and using only one. It makes the code more efficient ... thanks Don!

    As far as the 0.1 minimum lot size brokers ... you'll need to change the "LotSizeChangeAmount" parameter setting to something much higher. The default is $2500 but that's for a 0.01 lot size broker. I suggest setting it to $20,000 or even $25,000 for a 0.1 broker, otherwise the starting lot sizes for all trades is 0.5 and that's WAY to big for a $10,000 account. Change the LotSizeChangeAmount setting and I think you'll see better results.

    Paul
    Attached Files Attached Files

  2. #42

    Default PentzParabolic v1.3

    Here is version 1.3. It fixes a problem that was discovered using Alpari US. This also gets rid of all the different Magic Numbers and uses only one. It's still multi-pair compatible, though. Thanks for the suggestion, DonAdams!

    Paul
    Attached Files Attached Files

  3. #43

    Default

    Very impressed. Good job ppentz!

  4. #44

    Default

    Quick question. What timeframe do you use it on?

  5. #45

    Default

    Quote Originally Posted by Agentrfr View Post
    Quick question. What timeframe do you use it on?
    Use it on the 1H time frame.

  6. #46

    Default

    Quote Originally Posted by philippe07024 View Post
    ppentz,

    I did some more back testing with historical data on the FXDD demo account for the last 3 months.
    Attached are the results.
    *First observation:
    Same results with 0.01 lots and 0.1 lots (LotSize and LotStep).
    I noticed that the pairs are quoted on 4 digits and not 5 like for the demo account running on the Alpari server, it could be a lead for troubleshooting.
    *Second observation:
    There are major drawdowns which make the EA less performing than it could. I am surprised that you do not use stoploss, is there any particular reason?
    Sorry about the slow response!

    The latest version addresses the drawdown issue somewhat. I reduced an internal multiplier that was causing the lot size to grow too quickly during a ranging market, which should help. Also, what leverage did the account have? If it's 100:1 you should probably bump up the LotSizeChangeAmount parameter from $2500 to $5000. The account won't grow as fast but it's safer.

    Paul

  7. #47

    Default

    Quote Originally Posted by ppentz View Post
    Sorry about the slow response!

    The latest version addresses the drawdown issue somewhat. I reduced an internal multiplier that was causing the lot size to grow too quickly during a ranging market, which should help. Also, what leverage did the account have? If it's 100:1 you should probably bump up the LotSizeChangeAmount parameter from $2500 to $5000. The account won't grow as fast but it's safer.

    Paul
    Hello Paul,
    Attached is a test I ran on the same period than before (approximately 3 months) with the Alpari UK demo account. All details about their demo account is available at Alpari UK - Account Comparison Table.
    I setup the LotSizeChangeAmount to $20,000 to be even safer according your recommendation.

    On the 519 trades, only 3 are big loosers with an mount lost greater than $1,000. Orders # 118 and 447 lost respectively 85 and 100 pips. Order # 120 had a lot size of 10.73. Maybe you could filter these trades?

    Philippe.
    Attached Images Attached Images PentzParabolic v1.0-strategytester-gif 

  8. #48

    Default AUDUSD Set file

    Here is a set file for AUDUSD with optimized settings...
    Attached Files Attached Files

  9. #49

    Default

    Quote Originally Posted by philippe07024 View Post
    Hello Paul,
    Attached is a test I ran on the same period than before (approximately 3 months) with the Alpari UK demo account. All details about their demo account is available at Alpari UK - Account Comparison Table.
    I setup the LotSizeChangeAmount to $20,000 to be even safer according your recommendation.

    On the 519 trades, only 3 are big loosers with an mount lost greater than $1,000. Orders # 118 and 447 lost respectively 85 and 100 pips. Order # 120 had a lot size of 10.73. Maybe you could filter these trades?

    Philippe.
    I'm currently optimizing to include the dates in your test to provide a .set file that should do better. It's going to take a while though.

    Paul

  10. #50
    Junior Member
    Join Date
    Apr 2009
    Posts
    4

    Default

    Thank you for your contribution, it's a quite simple yet witty ea. As for the martingale naysayers.... a couple years ago I lost a substantial portion, 40%, of my live account using poor money management. I did recover all the loss and now continue to use some form of cost averaging today. Obviously, you need to have some kind of equity protection working, but if used wisely and somewhat monitored it can be an effective tool.

    Nick,

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