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codersguru · #1 (**permalink**) 11-06-2005, 11:24 PM

Hi folks,

I've got a lot of private messages asking me for helping with some pieces of code.

Here you can post your questions related to MQL4, and I'll do my best to answer them.

newdigital · #2 (**permalink**) 11-08-2005, 11:35 AM

I have two question.

The first one. Sometimes it is necessary to test some trading srateg manually before creating the EA. It is ok for M1, M5 and M15. But for H1 and higher timeframe it is difficult. Which piece of the code should be included in one indicator (anyone) for alarm (sounds or whatever) to indicate about two lines of the one indicator crossing? For example the indicator is having two lines only which suppose to be crossed (with alarm).

Second. We have two indicators. Which pieces of the code should be included into one or two indicators to indicate about two line crossing: one line is from the first indicator and an other line is from an other one (all those two lines are in the same window of course)?
If it is EA or script should be created so keep this question untill we will study EA and script's creation.

codersguru · #3 (**permalink**) 11-09-2005, 04:42 AM

Quote:

Originally Posted by newdigital

I have two question.

The first one. Sometimes it is necessary to test some trading srateg manually before creating the EA. It is ok for M1, M5 and M15. But for H1 and higher timeframe it is difficult. Which piece of the code should be included in one indicator (anyone) for alarm (sounds or whatever) to indicate about two lines of the one indicator crossing? For example the indicator is having two lines only which suppose to be crossed (with alarm).

Second. We have two indicators. Which pieces of the code should be included into one or two indicators to indicate about two line crossing: one line is from the first indicator and an other line is from an other one (all those two lines are in the same window of course)?
If it is EA or script should be created so keep this question untill we will study EA and script's creation.

Second question needs some work (the idea key is working with GlobalVariables to make the both of the indicators knows each others!)
I'll work in it later.

This is the code of the first question. It needs some test (it's 6:40 AM here

)

PHP Code:


			
//+------------------------------------------------------------------+

//|                                                        Demo1.mq4 |

//|                                                    Coders' Guru. |

//|                                         http://www.forex-tsd.com |

//+------------------------------------------------------------------+

#property copyright "Coders Guru"

#property link      "http://www.forex-tsd.com"



#property indicator_chart_window

#property indicator_buffers 2

#property indicator_color1 Red

#property indicator_color2 Blue

//---- buffers

double ExtMapBuffer1[];

double ExtMapBuffer2[];

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

int init()

  {

//---- indicators

   SetIndexStyle(0,DRAW_LINE);

   SetIndexBuffer(0,ExtMapBuffer1);

   SetIndexStyle(1,DRAW_LINE);

   SetIndexBuffer(1,ExtMapBuffer2);

//----

   return(0);

  }

//+------------------------------------------------------------------+

//| Custor indicator deinitialization function                       |

//+------------------------------------------------------------------+

int deinit()

  {

//---- 

   

//----

   return(0);

  }



bool Crossed (double line1 , double line2 )

{



static string last_direction = "";

string current_dirction = "";



if(line1>line2)current_dirction = "up";

if(line1<=line2)current_dirction = "down";







if(current_dirction != last_direction) 

{

      Alert("CRROSED: Line1 is (" + current_dirction + ") Line2 now");

      last_direction = current_dirction;

      return (true);

}

else

{

      return (false);



}

 

} 

int start()

  {

   int    counted_bars=IndicatorCounted();

 

//---- check for possible errors

   if (counted_bars<0) return(-1);

//---- last counted bar will be recounted

   if (counted_bars>0) counted_bars--;

   

   int pos=Bars-counted_bars;

   

     

 

   while(pos>=0)

     {

         ExtMapBuffer1[pos]= iMA(NULL,0,5,0,MODE_EMA,PRICE_CLOSE,pos);



         ExtMapBuffer2[pos]= iMA(NULL,0,20,0,MODE_EMA,PRICE_CLOSE,pos);



         

         pos--;

     }

     

     

     

     Print(Crossed (ExtMapBuffer1[0],ExtMapBuffer2[0]));





//----

   return(0);

  }

//+------------------------------------------------------------------+

rscatterday · #4 (**permalink**) 11-09-2005, 07:33 AM

Dear codersguru,

I have a couple of systems that I need help translating from Tradestation into Meta and then one basic trading system. I am working on from scratch. What is your hourly rate to help with this service?

Some of the systems are be posted and 2 of the systems I purchased and signed a confidentiality agreement so I can post it and would have to have you work on those in private for a fee. What are your fees?

Many thanks,

Rick

codersguru · #5 (**permalink**) 11-09-2005, 05:02 PM

Quote:

Originally Posted by newdigital

I have two question.

The first one. Sometimes it is necessary to test some trading srateg manually before creating the EA. It is ok for M1, M5 and M15. But for H1 and higher timeframe it is difficult. Which piece of the code should be included in one indicator (anyone) for alarm (sounds or whatever) to indicate about two lines of the one indicator crossing? For example the indicator is having two lines only which suppose to be crossed (with alarm).

Second...

Hi newdigital,

Did you test the code? is it what do you want?

newdigital · #6 (**permalink**) 11-09-2005, 05:22 PM

Not yet. I did not test yet.
Tomorrow I will insert this code to some indicator (anyone with two lines crossing).

ferman · #7 (**permalink**) 11-10-2005, 09:31 AM

Hi,

can you explain, how to work with the backtesting ?
what is needed to do for preparing our EA for backtesting ?
how is backtesting works (every tick, open price ...) ?

thanks.