Analogue to iBarShift - page 2

[Vasiliy Pushkaryov]

Here are two variants of the iBarShift() analogue: post #5 and post #7

[Nikolai Semko]

Denis:

The Bars function returns the number of bars. When we need to get the index of a bar with index 9 (sorry for the tautology), it will return 10, because the index of the first bar is 0.

Right, thanks. All in all, it's a good addition-notice. True, I do not really bother, I just know that it is the number of bars. And if the program needs an index, only then I subtract one.

[Nikolai Semko]

Vasiliy Pushkaryov:
Here are two variants of the iBarShift() analogue: post #5 and post #7

Simple variant:

Bars(NULL, 0, t, 32000000000)-1;

the shortest and fastest solution for iBarShift analog for current symbol and timeframe and requires no additional functions. However, for non-current ones too, you just need to fill in the first two parameters instead of null ones.

[Vasiliy Pushkaryov]

Nikolai Semko:
Just a variant:

is the shortest and fastest solution to counterpart iBarShift for the current symbol and current timeframe and requires no additional functions.

Only it won't work correctly in all cases. GetBarShift() from fxsaber is more versatile.

Try to put TimeCurrent() instead of t in your function, you'll see the result.

[Nikolai Semko]

Vasiliy Pushkaryov:

Only it won't work correctly in all cases. GetBarShift() by fxsaber is more universal.

Try putting TimeCurrent() instead of t in your function, you'll see the result.

The result will be the same.

[Vasiliy Pushkaryov]

Nikolai Semko:
The result will be the same.

You haven't even checked

[Nikolai Semko]

Vasiliy Pushkaryov:
You haven't even checked.

I've checked before many times, so I just know. But you haven't even tried it yourself.

[Vasiliy Pushkaryov]

Nikolai Semko:
I've tested it many times before, so I just know. But you haven't even tried it yourself.

Here's the script.

void OnStart()
{
  int idShort = Bars(NULL, 0, TimeCurrent(), 32000000000)-1;
  int idUni = GetBarShift(_Symbol, 0, TimeCurrent());
  Print("idShort = ", idShort, " idUni=", idUni);
}


//+------------------------------------------------------------------------------------------------------------------+
//| 
//+------------------------------------------------------------------------------------------------------------------+
int GetBarShift(const string symbol_name, const ENUM_TIMEFRAMES timeframe, const datetime time) 
{
  int res=-1;
  datetime last_bar;
  
   // --- время открытия последнего бара по символу, периоду
  if(SeriesInfoInteger(symbol_name, timeframe, SERIES_LASTBAR_DATE, last_bar)) 
  {
    if(time > last_bar) res = 0;
    else 
    {
      const int shift = Bars(symbol_name, timeframe, time, last_bar);
      if(shift > 0) res = shift-1;
    }
  }
  return res;
}

It just hangs. Forcibly removing it from the chart gets the result.

So I tried it, that's why I advised you too. But since you used it and it suits you, I won't change your mind.

[Renat Akhtyamov]

That's fine, too

int iBarShift(string symbol, ENUM_TIMEFRAMES timeframe, datetime tm)
   {
        datetime tm0[1];      
        CopyTime(symbol,timeframe,0,1,tm0);
        int res=Bars(symbol,timeframe,tm0[0],tm)-1;
        return(res);
   }

[Alain Verleyen]

https://www.mql5.com/ru/code/1864