Questions from a "dummy" - page 200

[[Deleted]]

So, there is a function to determine the opening time of a bar (including if the bar is in the future)

//+---------------------------------------------------------------------------+
//| Получение точного времени открытия                                        |
//|Input:                                                                     |
//|1) Время, которое необходимо округлить до ближайшего времени открытия бара |
//|2) Переменная для вывода результата                                        |
//|3) Период ТФ                                                               |
//|4) Отклонение влево-вправо                                                 |
//|Возврат: количество элементов(1), 0 если не скопировано, (-1) если ошибка  |
//+---------------------------------------------------------------------------+
int GetSingleBarOpenTime(datetime Time,datetime &Output,ENUM_TIMEFRAMES nPeriod,int Shift=0) export
  {
   datetime OpenTime[1];
   int Count=0;
// если бар существует то используем стандартную процедуру поиска времени открытия
   if(Time<=TimeCurrent() && Shift==0)
     {
      Count=CopyTime(Symbol(),nPeriod,Time,1,OpenTime);
      if(Count==0)
        {
         Print("GetCorrectOpenTime CopyTime elements=0");
         return(0);
        }
      else if(Count<0)
        {
         Print("GetCorrectOpenTime error "+(string)GetLastError());
         return(Count);
        }
      else
        {
         Output=OpenTime[0];
         return(Count);
        }
     }
//если бар находится в будущем то используем следующую процедуру
   else
     {
      MqlDateTime sTime;
      // NumOfUnits - количество стандартных единиц
      int NumOfUnits=0; 
      int ToRnd;
      TimeToStruct(Time,sTime);
      //Единица измерения(1-минута, 2 - час, 3 - день, 4 - неделя(но используются дни), 5 - месяц)
      short Unit=0;
      //в зависимости от ТФ инициализируются параметры
      switch(nPeriod)
        {
         case PERIOD_M1:   {Unit=1;NumOfUnits=1;break;}
         case PERIOD_M2:   {Unit=1;NumOfUnits=2;break;}
         case PERIOD_M3:   {Unit=1;NumOfUnits=3;break;}
         case PERIOD_M4:   {Unit=1;NumOfUnits=4;break;}
         case PERIOD_M5:   {Unit=1;NumOfUnits=5;break;}
         case PERIOD_M6:   {Unit=1;NumOfUnits=6;break;}
         case PERIOD_M10:  {Unit=1;NumOfUnits=10;break;}
         case PERIOD_M12:  {Unit=1;NumOfUnits=12;break;}
         case PERIOD_M15:  {Unit=1;NumOfUnits=15;break;}
         case PERIOD_M20:  {Unit=1;NumOfUnits=20;break;}
         case PERIOD_M30:  {Unit=1;NumOfUnits=30;break;}
         case PERIOD_H1:   {Unit=2;NumOfUnits=1;break;}
         case PERIOD_H2:   {Unit=2;NumOfUnits=2;break;}
         case PERIOD_H3:   {Unit=2;NumOfUnits=3;break;}
         case PERIOD_H4:   {Unit=2;NumOfUnits=4;break;}
         case PERIOD_H6:   {Unit=2;NumOfUnits=6;break;}
         case PERIOD_H8:   {Unit=2;NumOfUnits=8;break;}
         case PERIOD_H12:  {Unit=2;NumOfUnits=12;break;}
         case PERIOD_D1:   {Unit=3;NumOfUnits=1;break;}
         case PERIOD_W1:   {Unit=4;NumOfUnits=7;break;}
         case PERIOD_MN1:  {Unit=5;NumOfUnits=1;break;}
         default:         {Print("Period is unknown"); break;}
        }
      // Если ТФ - минуты, то
      if(Unit==1)
        {
         sTime.sec=0;
         //Остаток от деления
         ToRnd=(int)fmod(sTime.min,NumOfUnits);
         Time=StructToTime(sTime);
         // Округление до ближайшего времени открытия(пример: если сейчас 14:25, и тф 2min, то ближайщее время открытия бара - 14:24)
         Time-=(ToRnd*60);
         Time+=(NumOfUnits*Shift*60);

        }
      else if(Unit==2)
        {
         sTime.sec=0;
         sTime.min=0;
         ToRnd=(int)fmod(sTime.hour,NumOfUnits);
         Time=StructToTime(sTime);
         Time-=(ToRnd*60*60);
         Time+=(NumOfUnits*Shift*60*60);
        }
      else if(Unit==3)
        {
         sTime.hour=0;
         sTime.min=0;
         sTime.sec=0;
         ToRnd=(int)fmod(sTime.day,NumOfUnits);
         Time=StructToTime(sTime);
         int hds;
         hds=sTime.day_of_week;
         if (hds==0) hds=7;
         hds=floor((hds+Shift)/7)*2;
         int ti=Shift+hds;
         while (hds>7)
         {
            hds=(floor(hds/7))*2;
            ti+=hds;
         }
         Print(ti);
         Time-=(ToRnd*60*60*24);
         Time+=(NumOfUnits*Shift*60*60*24);
        }
      else if(Unit==4)
        {
         sTime.hour=0;
         sTime.min=0;
         sTime.sec=0;
         ToRnd=(int)fmod(sTime.day,NumOfUnits);
         Time=StructToTime(sTime);
         Time-=(ToRnd*60*60*24);
         Time+=(NumOfUnits*Shift*60*60*24);
        }
      else if(Unit==5)
        {
         sTime.sec=0;
         sTime.min=0;
         sTime.hour=0;
         sTime.day=1;
         sTime.mon=sTime.mon-(int)fmod(sTime.mon,NumOfUnits)+(NumOfUnits*Shift);
         while(sTime.mon<1)
           {
            sTime.year--;
            sTime.mon=12+sTime.mon;
           }
         while(sTime.mon>12)
           {
            sTime.year++;
            sTime.mon=sTime.mon-12;
           }
         if(sTime.sec<0)
            Print("GetSingleBarOpenTime seconds error");
         if(sTime.min<0)
            Print("GetSingleBarOpenTime minutes error");
         if(sTime.hour<0)
            Print("GetSingleBarOpenTime hours error");
         if(sTime.day<1)
            Print("GetSingleBarOpenTime days error");
         if(sTime.mon<0)
            Print("GetSingleBarOpenTime months error");
         if(sTime.year<1970)
            Print("Year < 1970");
         Time=StructToTime(sTime);
        }
      Output=Time;
      return(1);
     }
  }

The problem with Shift is that it now shifts not by the number of bars but by the number of days (it doesn't matter on D1 or D1; the main thing is to understand D1). So I think I got it in my head that I can check the number of daysTotal by shift (number of weekdays) and the current day of the week, but which formula to use - I can not determine.

Note: in Unit=3 try to do it (so far unsuccessful)

Help please.

[Yedelkin]

victorva: the trade request gives error 10016 ("wrong stops"). What are they wrong in?

1. Insert the code correctly (Ctrl+Alt+M).

void OnTick()
  {
   MqlTick last_tick={0};                       // предопределенная структура для получения текущих данных рынка
   SymbolInfoTick("EURUSD",last_tick);          // инструмент: указывать обязательно
   double Bid = last_tick.bid;                         // Текущая цена Bid
   MqlTradeRequest request={0};                 
   MqlTradeResult result={0};                 
   request.action=TRADE_ACTION_DEAL;           
   request.magic=555;                          
   request.symbol="EURUSD";
   request.volume=1.0;                  
   request.deviation=0;                 
   request.type=ORDER_TYPE_BUY;                        
   request.sl=Bid-300*_Point;                         // Уровень Stop Loss ордера
   request.tp=Bid+1000*_Point;                    // Уровень Take Profit ордера
   OrderSend(request,result);
   Comment("retcode = ",result.retcode);
  }

2. Let's start with the fact that your request doesn't contain the mandatory field request.price (the absence of such a field is only acceptable for Market Execution mode). So it turns out that as long as request.price==0.

[Mykola Demko]

victorva:

the trade query gives error 10016 ("wrong stops"). What are they wrong?

request.sl=Bid-300*_Point; // Stop Loss level of the order

request.tp=Bid+1000*_Point; // Level of Take Profit order

In that they are not normalized. (use the SRC button to insert the code).

  request.sl=NormalizeDouble(Bid-300*_Point,_Digits);   // Уровень Stop Loss ордера
  request.tp=NormalizeDouble(Bid+1000*_Point,_Digits);  // Уровень Take Profit ордера

[MetaQuotes]

Checking the functionality of the automatic link insertion

1. Вставляйте код правильно (Ctrl+Alt+M).

[victorva]

Yedelkin:

1. Insert the code correctly (Ctrl+Alt+M).

2. Let's start with the fact that your request doesn't specify the mandatory field request.price (the absence of such a field is only allowed for Market Execution mode). So it turns out that as long as request.price==0.

Thank you. Put the price in, it worked.

[[Deleted]]

Please help me, I can't figure one thing out.

|9|8|7|6|5|4|3|2|1|0| <-- time series Rates

CopyRates(Symbol(),Period(),Time,2,Result);

For example I've specified time of candlestick #3. In this case, I get back the Rates of candlesticks #3 and #4. But how to get the rates of candlesticks #3 and #2, having an open time of candlestick #3. The negative number is not digested.

I had the idea of finding an index of sorts, but to do it I need to copy all elements from the current one, but, gosh, if I have M1 and a bar 10 years old, then the array is too big.

Thanks in advance

[DrManhattan]

Good day!

Could you please explain in which units the traffic is measured in the "Services" tab of MetaTrader 5 Strategy Tester (MetaTester 5 Agents Managers build 712)? Is it measured in kiloBytes|megaBytes or kiloBytes|megaBytes?

Thank you.

[Анатолий]

Guys, can you tell me if there is an indicator or object in the base that allows you to display other currencies' charts on the main chart?

p.s. I wrote my own for mt4, but maybe there is a ready-made one here...

[Анатолий]

storm:

Guys, can you tell me if there is an indicator or object in the base that allows you to display other currencies' charts on the main chart?

p.s. I wrote my own for mt4, but maybe there is a ready-made one here...

I found it, they already wrote it, z**** , I don't need to write it myself at least. https://www.mql5.com/ru/code/1055

[Анатолий]

storm:
Found it, it's already written, z**** , you don't have to write it yourself. https://www.mql5.com/ru/code/1055

Inversion in it was intended by the author, but was not implemented, I had to tweak it, but credit to the author!