iVolume() and iTickVolume() are the same thing, and the reason is for backwards compatibility with MQL4 which used iVolume().
"Tick volume" is a count of ticks while "Real volume" is the real volume transacted on the exchange. Forex and CFDs don't have real volume (only tick volume), while for example, Futures and Stocks have both.
iVolume() and iTickVolume() are the same thing, and the reason is for backwards compatibility with MQL4 which used iVolume().
"Tick volume" is a count of ticks while "Real volume" is the real volume transacted on the exchange. Forex and CFDs don't have real volume (only tick volume), while for example, Futures and Stocks have both.
Thanks for iVolume explanation.
About IRealVolume. In ticks we have two fileds, "volume" and "volume_real". In bars we only have "volume". So my question is, bars "volume" is relative (i suppose a sum of) to ticks "volume" filed or to ticks "volume_real" filed? It's not explained in documentation.
No, please refer to the documentation ...
Tick data — MqlTick — Documentation on MQL5: Price Data Structure / Constants, Enumerations and Structures
ulong volume; // Volume for the current Last price double volume_real; // Volume for the current Last price with greater accuracyBar data — MqlRates — Documentation on MQL5: History Data Structure / Constants, Enumerations and Structures
long tick_volume; // Tick volume long real_volume; // Trade volume
No, please refer to the documentation ...
Tick data — MqlTick — Documentation on MQL5: Price Data Structure / Constants, Enumerations and Structures
Bar data — MqlRates — Documentation on MQL5: History Data Structure / Constants, Enumerations and Structures
You are right!
So, what is exact this "trade volume?" How it is calculated?
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Hi, I'm a little confused about what exactly these functions return.
If I understand correctly:
- iTickVolume returns the count of ticks used to build a bar. It is also passed by onCalculate with the "tick_volume" array. It's also shown in the data window as "Tick volume". Right?
- IRealVolume returns the sum of the "volume" fields of the ticks used to build the bar? Or does it return the sum of the "volume_real" fields of the ticks?
This value is shown with the "Volume" label in the Data Window, it is passaded by onCalculate with the "volume" array, and can it also be obtained through CopyRealVolume, right?
- Latest, iVolume, seems a duplicate of iTickVolume or am I missing something?
Thanks