The P.I.D.

azmel · #1 (**permalink**) 04-01-2008, 10:26 AM

The P.I.D.

I have written a new EA based on unique control signal strategy. The EA is doing well so far in forward testing and is generating good profits. I will commercialise this EA when I am happy with its performance. In the meantime, I would like to invite everyone to forward-test the Demo version attached.

Introduction

The PID is a strategy that analyses the analog signal-noise generated by the forex market using three different signal processing equations. Trade signals are generated by the PID Controller and are managed by the EA. The EA utilise some sort of "quasi-pyramiding/martingale" effect if the market retracts.

Demo Installation

Download and install a copy of Metatrader4 (MT4) from InterbankFX if don't already have one.

Copy "The PID Demo.ex4" EA to the MT4's \experts folder.

Copy "The PID Controller.ex4" indicator to the MT4's \experts\indicators folder.

Open a demo mini account with a leverage of 1:200 and a minimum deposit of $1,000 ($2,000 is actually recommended to give the EA some room to move). If you are using non-IBFX mini account, then open $10,000 instead.

Open all 19 charts and attach the EA to each chart. Each chart can be of any timeframe but it is best to put them on M30 as it has less noise compared to lower timeframes. You don't need to attach the indicator to the chart as attaching it won't display anything anyway, but the indicator must be present in the \experts\indicators folder for the EA to work properly.

A typical trade will last from a few hours to a few days, sometime lasting over a week - so give it some time to close its positions and not too worry about the many floating positions.

If you need to shut down the EA, set ShutDown=true and it will close all positions and not open new ones. Closing all open positions will take a few days to complete.

The EA will need to be run 24/7 without interruption. If the EA is prematurely terminated, it won't be able to close its positions as it has zero StopLoss and TakeProfit. Everything is handled internally. If the EA is closed prematurely (for example a computer reboot), simply restart the EA and it will pick up where its left off.

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UPDATE 28th May, 2008: The PID SP4 has been commercialised. Further details can be found on my website:

http://autofx-advisors.com

Thank you all who have participated in forward-testing and beta-testing this EA.

Best regards and wishes,

Azmel Ainul

iGoR · #2 (**permalink**) 04-02-2008, 01:32 PM

Quote:

Originally Posted by azmel

A typical trade will last from a few hours to a few days, sometime lasting over a week - so give it some time to close its positions and not too worry about the many floating positions.

What is the stoploss rule ?... how much pips or % or $ you allow a position to go against you ?...
You say that a position can be open as much as a week. But what happens if during that week the price continioulsly goes against you ?...
And important what is the avg T/P you take?....or better what is the avg winn/loss ratio ?...

The reason why I ask this question is that we all saw enough EA's now that have so called very nice hitratio because the T/P is very small but the system allows positions to go in enormous losses. Or floating losses that are many times bigger then the avg. profit. Wich is rediculous and mentaly impossible to trade.
The idea behind it is that so called price "always" comes back but if you look to your monthly charts over the last 10 years, you will find plenty of reversalls where price NEVER came back. So it is more gambling and hoping that price would come back then realistic trading according direction of the market. And without pulling the plug if one has positions against the direction of the market.
So I hope for you that you have a realistic S/L or a realistic avg loosing trade that is in line with the T/P or with the avg. wining trade.

regards...iGoR

PS. Be awere that never was a martingale system build that did not blow up the account after trading it over a longer period. And longer means not a couple of weeks nore months.

MiniMe · #3 (**permalink**) 04-02-2008, 02:18 PM

azmel ,
PID is it what I think it is : Proportional derivative & integrator (PID) control ?
if so how do you get the equation of the trading curve ? because that means you need to adjust the PID when the trend changes !!

jimven · #4 (**permalink**) 04-04-2008, 02:05 AM

Azmel:

I started backtesting the P.I.D. and am keeping an eye on it right now as it runs. Here's some observations:

It runs very slowly. This can be a problem without a high-powered processor if you're going to run it simultaneously on all the charts available to you! I wonder if it would keep up?
As you say, it is clear that it behaves as though some of the logic is Martingale-style. The balance takes significant dips and then recovers...so far.

Does the diversification of attaching the EA to many charts smooth out the "dipping balance" problem?

aerist123 · #5 (**permalink**) 04-08-2008, 02:42 PM

I started forward-test of this Demo version. I let you know the results of testing.

COTtrader · #6 (**permalink**) 04-08-2008, 03:56 PM

Three cheers, Azmel! Keep up the great work. I admire persons like yourself. Stay the course.

COTtrader
"Ken"

omelette · #7 (**permalink**) 04-08-2008, 08:26 PM

azmel, many thanks for posting the demo.

As already mentioned backtesting isn't really feasable as it's mind-numbingly slow (azmel, very useful command 'IndicatorCounted()'

) as the indicator obviously uses all bars in its calculations, and will get progressively slower as backtest 'time' passes... Luckily, it appears to use EOB trading so 'Open Prices Only' backtesting should be reasonably accurate, so I backtested from June '06 -> Present - and it's still took about 3 hours! btw I start from June '06 'cos imo, Metaquotes price-data up till Oct-Nov '06 is worthless, (too easy to make profitable EA's with, therefore suspect) but it's good to have a few months of 'easy data' to compare with 'real' data. That said, notice that the bulk of the profit has been made before trade '216' on equity pic. (Nov '06), and it generally struggles to maintain profitability thereafter - practically every 'profitable' EA behaves the same I have found, and imo, it's all down to the s*itty data, so the EA's are not really profitable (my interpretation obviously...)

But when all is said and done, it did maintain profitability and d/d wasn't horrendous (it wouldn't have survived on the recommended $2,000 though...), so it could have potential...

PS. - Tried Backtesting EURUSD, it opened 27 trades then stopped dead, but no errors - seems to be a bug of some kind. So I tested USDCHF instead. No HG, that's for sure...

azmel · #8 (**permalink**) 05-28-2008, 04:01 PM

Ladies and Gentlemen,

I would like to present you a statement from the best Expert Advisor that I have ever written: THE PID SP4

This EA is a commercial product.

Best regards and wishes,

Azmel

azmel · #9 (**permalink**) 05-28-2008, 07:22 PM

For those who wants to follow the trades made by the PID SP4 "Live", here are the investor (read-only) details:

Broker: Alpari UK
Login: 165617
Password: n1mofkh

yicktan · #10 (**permalink**) 06-05-2008, 08:15 AM

Quote:

Originally Posted by azmel

Ladies and Gentlemen,

I would like to present you a statement from the best Expert Advisor that I have ever written: THE PID SP4

This EA is not public.

Best regards and wishes,

Azmel

How much are you going to sell it for? Interested to get a copy.