How to solve two errors in a computer program - General

A100 2012.11.28 08:08 #8841

I understood that I used the new description - the old ones

SYMBOL_FILLING_FOK
SYMBOL_FILLING_IOC

are not in the description, but are still highlighted by the editor

Yedelkin 2012.11.28 08:22 #8842

AndreyS: Please help to analyse the situation, following code:

When using this function there is an error "2012.11.28 09:58:32 4194304 bytes not available", help to understand, increased swap file to 10GBt.

Is the log file clogged with alerts by any chance?

Andriy Sydoruk 2012.11.28 08:47 #8843

Yedelkin:
А лог-файл случайно алёртами не забивается?

Checked it, the log is 10 kBt, there have been more,

MemoryException 09:36:12 4194304 bytes not available" error, it repeats often.

Noticed (by previous code):

// Selection of period from array by index (from PERIOD_M5 (index - 5) to PERIOD_D1 (index - 19))

If less periods (e.g. PERIOD_M5 to PERIOD_M6) are taken for the enumeration, no error will occur.

Yedelkin 2012.11.28 08:55 #8844

AndreyS: Noted (from previous code):

// Selection of a period from an array by index (from PERIOD_M5 (index - 5) to PERIOD_D1 (index - 19))

1. which type of array are we talking about?

2. What value is contained in this array under index - e.g. 19?

Andriy Sydoruk 2012.11.28 09:08 #8845

ОYedelkin:

1. what type of array are we talking about?

2. What value is contained in this array under the index, e.g. 19?

I think it's easier to do this, I wrote the function as a separate expert, you can run it and see for yourself.

If you have time and desire help. (The error is the same).

Duplicate code:

int m_handle = 0;
int m_count_symbols = 0;
string m_name_symbols[1000];
string m_strategy_symbol;
int m_period;
double m_valuesa[];
void OnInit()
{
  ENUM_TIMEFRAMES PERIOD_INDEX [22] = {PERIOD_CURRENT,
                                       PERIOD_M1, PERIOD_M2,PERIOD_M3,PERIOD_M4,PERIOD_M5,PERIOD_M6,PERIOD_M10,PERIOD_M12,PERIOD_M15,PERIOD_M20,
                                       PERIOD_M30,PERIOD_H1,PERIOD_H2,PERIOD_H3,PERIOD_H4,PERIOD_H6,PERIOD_H8, PERIOD_H12,PERIOD_D1, PERIOD_W1,
                                       PERIOD_MN1};
  m_count_symbols = 1;
  m_name_symbols[0] = _Symbol;
  
  // Проверка всех вариантов в циклах
  for(int isymb=1; isymb<=m_count_symbols; isymb++)
  {
    for(int iperiod=5; iperiod<=19; iperiod++)
    {  
      for(int iperiodma=1; iperiodma<=100; iperiodma++)
      {  
      
        // Выбор символа (m_strategy_symbol) из масива используемых символов (m_name_symbols[]) количаством (m_count_symbols)
        m_strategy_symbol = m_name_symbols[isymb];
  
        // Выбор периода из масива по индексу (от PERIOD_M5 (индекс - 5) до PERIOD_D1 (индекс - 19))
        m_period = PERIOD_INDEX[iperiod];
  
        // Освобождаю дескриптор загруженого ранее индикатора
        IndicatorRelease(m_handle);
        // Создаю новый индикатор с периодом - (int)(MathRound(Colony[3][chromos]*100)+1) = от 1 до 100
        m_handle=iMA(m_strategy_symbol,(ENUM_TIMEFRAMES)m_period,iperiodma,0,MODE_EMA,PRICE_CLOSE);
      
        // Без использования Sleep(1000); - генерируется последующа ошибка при использовании в коде ф-ции: CopyBuffer
        // "ошибка доступа к историческим даным", хоть дескриптор и создан!?!?!?
        Sleep(1000);
        if(m_handle<0)
        {
          Alert("Ошибка при создании индикатора MA - номер ошибки: ",GetLastError()," ",m_strategy_symbol," ",m_period);
        } else
        {
          // Аналитический процес
          // В место процесса, обычныое чтение даных индикатора
          CopyBuffer(m_handle,0,0,1,m_valuesa);
          ArraySetAsSeries(m_valuesa,true); 
        }
        
      }
    }
  }
}

File is attached. Parameters of the tester (just in case)

EURUSD.e

H1

OHLC

2012.1.1 - 2012.4.1

Files:

111.mq5 3 kb

Andriy Sydoruk 2012.11.28 09:51 #8846

Updating a question, I am interested in two errors:

1. 2012.11.28 11:45:18 4194304 bytes not available

I can't solve them yet, but if instead of enumerating periods m_period = PERIOD_INDEX[iperiod], set for examplePERIOD_H1, there will be no error,

but I need all periods.

2. 2012.11.28 11:45:49 2012.01.01 00:00:00 Alert: Error CopyBuffer - error number: 4806

to solve this error, I will uncommentSleep(1000); it will disappear and data from the buffer will be copied normally.

question: why? is it possible to do withoutSleep(1000), to avoid additional time wasting?

int m_handle = 0;
int m_count_symbols = 0;
string m_name_symbols[1000];
string m_strategy_symbol;
int m_period;
double m_valuesa[];
MqlRates m_rates[];
void OnInit()
{
  ENUM_TIMEFRAMES PERIOD_INDEX [22] = {PERIOD_CURRENT,
                                       PERIOD_M1, PERIOD_M2,PERIOD_M3,PERIOD_M4,PERIOD_M5,PERIOD_M6,PERIOD_M10,PERIOD_M12,PERIOD_M15,PERIOD_M20,
                                       PERIOD_M30,PERIOD_H1,PERIOD_H2,PERIOD_H3,PERIOD_H4,PERIOD_H6,PERIOD_H8, PERIOD_H12,PERIOD_D1, PERIOD_W1,
                                       PERIOD_MN1};
  m_count_symbols = 1;
  m_name_symbols[0] = _Symbol;
  
  // Проверка всех вариантов в циклах
  for(int isymb=1; isymb<=m_count_symbols; isymb++)
  {
    for(int iperiod=5; iperiod<=19; iperiod++)
    {  
      for(int iperiodma=1; iperiodma<=100; iperiodma++)
      {  
      
        // Выбор символа (m_strategy_symbol) из масива используемых символов (m_name_symbols[]) количаством (m_count_symbols)
        m_strategy_symbol = m_name_symbols[isymb];
  
        // Выбор периода из масива по индексу (от PERIOD_M5 (индекс - 5) до PERIOD_D1 (индекс - 19))
        m_period = PERIOD_INDEX[iperiod];
  
        // Освобождаю дескриптор загруженого ранее индикатора
        IndicatorRelease(m_handle);
        // Создаю новый индикатор с периодом - (int)(MathRound(Colony[3][chromos]*100)+1) = от 1 до 100
        m_handle=iMA(m_strategy_symbol,(ENUM_TIMEFRAMES)m_period,iperiodma,0,MODE_EMA,PRICE_CLOSE);
      
        // Без использования Sleep(1000); - генерируется последующа ошибка при использовании в коде ф-ции: CopyBuffer
        // "ошибка доступа к историческим даным", хоть дескриптор и создан!?!?!?
        //Sleep(1000);
        if(m_handle<0)
        {
          Alert("Ошибка при создании индикатора MA - номер ошибки: ",GetLastError()," ",m_strategy_symbol," ",m_period);
        } else
        {
          // Аналитический процес
          // В место процесса, обычныое чтение даных индикатора
          double p_close;
          if (CopyRates(m_strategy_symbol,(ENUM_TIMEFRAMES)m_period,0,1,m_rates) < 0)
          {
            Alert("Ошибка CopyRates - номер ошибки: ",GetLastError());
          }

          p_close=m_rates[0].close;  // цена закрытия предыдущего бара          
          if (CopyBuffer(m_handle,0,0,1,m_valuesa) < 0)
          {
            Alert("Ошибка CopyBuffer - номер ошибки: ",GetLastError());
          }
          ArraySetAsSeries(m_valuesa,true); 
          bool buy_condition_1=(p_close>m_valuesa[0]);
          bool sell_condition_1=(p_close<m_valuesa[0]);
        }
        
      }
    }
  }
}

Files:

222.mq5 3 kb

Error 4806 Requested data Failed to copy data Please help - "Market

Yedelkin 2012.11.28 10:09 #8847

AndreyS:

Unfortunately, I don't have a tester handy.

A bit of trivia. On the left side of the line you have

m_period = PERIOD_INDEX[iperiod];

there is a variable of the int type on the left and a value of the ENUM_TIMEFRAMES type on the right. Why don't you declare 'ENUM_TIMEFRAMES m_period;' right in the fifth line?

2. You have a triple nested loop where one and the same indicator is called in a rather short time. Only for one symbol about 1400 calls occur. Used indicators just don't have time to free memory. Search the forum threads about the IndicatorRelease() function. It was once said that the use of this function in code is already an error.

A quick change of indicators in the code also explains the appearance of error 4806. The new indicator simply has no time to load the required data.

Useful features from KimIV Why indicator dissapear when Start time, end time

[Deleted] 2012.11.28 11:34 #8848

Can you tell me how to get rid of Abnormal termination?

The EA stops working and this can only be seen in the log, it is green on the chart.

Yedelkin 2012.11.28 11:54 #8849

G001: How do you get rid of abnormal termination?

Well, there could be any number of reasons... The best known ones are division by zero, exceeding array limits.

Andriy Sydoruk 2012.11.28 12:02 #8850

I have changed the code taking into account your comments:

(corrected m_period = PERIOD_INDEX[iperiod];, error is not significant in this case - but thanks, I fixed it)

int m_handle = 0;
int m_count_symbols = 0;
string m_name_symbols[1000];
string m_strategy_symbol;
ENUM_TIMEFRAMES m_period;
double m_valuesa[];
MqlRates m_rates[];
void OnInit()
{
  ENUM_TIMEFRAMES PERIOD_INDEX [22] = {PERIOD_CURRENT,
                                       PERIOD_M1, PERIOD_M2,PERIOD_M3,PERIOD_M4,PERIOD_M5,PERIOD_M6,PERIOD_M10,PERIOD_M12,PERIOD_M15,PERIOD_M20,
                                       PERIOD_M30,PERIOD_H1,PERIOD_H2,PERIOD_H3,PERIOD_H4,PERIOD_H6,PERIOD_H8, PERIOD_H12,PERIOD_D1, PERIOD_W1,
                                       PERIOD_MN1};
  m_count_symbols = 1;
  m_name_symbols[0] = _Symbol;
  
  // Проверка всех вариантов в циклах
  for(int isymb=1; isymb<=m_count_symbols; isymb++)
  {
    for(int iperiod=5; iperiod<=19; iperiod++)
    {  
      for(int iperiodma=1; iperiodma<=100; iperiodma++)
      {  
      
        // Выбор символа по индексу isymb
        m_strategy_symbol = m_name_symbols[isymb];
  
        // Выбор периода из масива по индексу iperiod
        m_period = PERIOD_INDEX[iperiod];
  
        // Освобождаю дескриптор загруженого ранее индикатора
        IndicatorRelease(m_handle);
        // Создаю новый индикатор с периодом - iperiodma
        m_handle=iMA(m_strategy_symbol,m_period,iperiodma,0,MODE_EMA,PRICE_CLOSE);
        // Задержка, для того чтобы индикатор успел создатся, иначе ошибка 4806 при последующем использовании CopyBuffer 
        Sleep(1000);
        if(m_handle<0)
        {
          Alert("Ошибка при создании индикатора MA - номер ошибки: ",GetLastError()," ",m_strategy_symbol," ",m_period);
        } else
        {
          // Аналитический процес
          // В место процесса, обычныое чтение даных индикатора
          double p_close;
          if (CopyRates(m_strategy_symbol,m_period,0,1,m_rates) < 0)
          {
            Alert("Ошибка CopyRates - номер ошибки: ",GetLastError());
          }
          p_close=m_rates[0].close;  // цена закрытия предыдущего бара          
          if (CopyBuffer(m_handle,0,0,1,m_valuesa) < 0)
          {
            Alert("Ошибка CopyBuffer - номер ошибки: ",GetLastError());
          }
          ArraySetAsSeries(m_valuesa,true); 
          bool buy_condition_1=(p_close>m_valuesa[0]);
          bool sell_condition_1=(p_close<m_valuesa[0]);
        }
        
      }
    }
  }
}

issue with error (Error CopyBuffer - error number: 4806) - removed, I cured it by Sleep(1000); - I put it down to not having enough time to create indicator.

The issue with the error (4194304 bytes not available) remains.

The remark about IndicatorRelease() - taken into account in the processing.

If anyone have thoughts, please share, thank you.

Error 4806 while using Trailing Bar Entry EA Help with make a

Errors, bugs, questions - page 885