Any questions from newcomers on MQL4 and MQL5, help and discussion on algorithms and codes - page 46
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Hello.
I am asking for help.
How do I know that the loss from the beginning of the day, for closed positions was 10%?
This Expert Advisor shows in the upper left corner the percentage of profit or loss for a set period
//| test02.mq4 |
//| Sergey Gritsay |
//| https://www.mql5.com/ru/users/sergey1294 |
//+------------------------------------------------------------------+
#property copyright "Sergey Gritsay"
#property link "https://www.mql5.com/ru/users/sergey1294"
#property version "1.00"
#property strict
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
enum mode_type
{
BUY=OP_BUY,
SELL=OP_SELL,
ALL = -1
};
input string Symbols=NULL;
input int Magic=-1;//Identification number
input mode_type ModeType=ALL;
input ENUM_TIMEFRAMES TimeFrame=PERIOD_D1;
double procent=0.0;
double prev_balans=0.0;
double Profit=0.0;
//+------------------------------------------------------------------+
//| Expert initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
//---
//---
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Expert deinitialization function |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
//---
}
//+------------------------------------------------------------------+
//| Expert tick function |
//+------------------------------------------------------------------+
void OnTick()
{
Profit=LastProfit(iTime(_Symbol,TimeFrame,0),Symbols,Magic,ModeType);
prev_balans=Balans(0,iTime(_Symbol,TimeFrame,0));
if(prev_balans!=0.0)procent=Profit/prev_balans*100.0;
Comment(
"\nTime = ",iTime(_Symbol,TimeFrame,0),
"\nProfit = ",DoubleToStr(Profit,2),
"\nprev_balans = ",DoubleToStr(prev_balans,2),
"\nprocent = ",DoubleToStr(procent,4)," %"
);
}
//+------------------------------------------------------------------+
double LastProfit(
datetime time, // Дата, представленная в виде количества секунд, прошедших после 00:00 1 января 1970 года.
string symbol=NULL, // символ, если NULL то любой символ
int magic=-1, // идентификатор, если -1 то любой идентификатор
int cmd=-1 // торговая операция, если -1 любая торговая операция
)
{
double profit=0;
int total=OrdersHistoryTotal();
for(int i=total-1;i>=0;i--)
{
if(!OrderSelect(i,SELECT_BY_POS,MODE_HISTORY))continue;
if(OrderSymbol()==symbol || symbol!=NULL)
{
if(OrderMagicNumber()==magic || magic==-1)
{
if(OrderType()==cmd || cmd==-1)
{
if(OrderCloseTime()<time)continue;
profit+=OrderProfit()+OrderCommission()+OrderSwap();
}
}
}
}
return(profit);
}
//+------------------------------------------------------------------+
double Balans(
datetime start_time,// C какой даты. Дата, представленная в виде количества секунд, прошедших после 00:00 1 января 1970 года.
datetime stop_time,// По какую дату. Дата, представленная в виде количества секунд, прошедших после 00:00 1 января 1970 года.
)
{
double profit=0;
int total=OrdersHistoryTotal();
for(int i=0; i<total; i++)
{
if(!OrderSelect(i,SELECT_BY_POS,MODE_HISTORY))continue;
if(OrderCloseTime()<start_time || OrderCloseTime()>stop_time)continue;
profit+=OrderProfit()+OrderCommission()+OrderSwap();
}
return(profit);
}
//+------------------------------------------------------------------+
...
This advisor shows in the upper left corner the percentage of profit or loss for a set period
Thank you.
There is a function which calculates the number of losing positions for the whole period.
What can I change to see the number of losing positions closed today in a row?
{
int PosCnt = 0;
int cnt = HistoryTotal();
for (int i = cnt-1; i >=0; i--) {
if (!OrderSelect(i, SELECT_BY_POS, MODE_HISTORY)) continue;
if (OrderSymbol() != Symbol()) continue;
if (OrderMagicNumber() != Magic) continue;
int type = OrderType();
if (type != OP_BUY && type != OP_SELL) continue;
if (OrderProfit()+OrderSwap()+OrderCommission() > 0) break;
PosCnt++;
}
return (PosCnt);
}
Thank you.
There is a function which counts the number of losing positions over time.
What should I change to find out the number of losing positions closed today in a row?
{
int PosCnt = 0;
int cnt = HistoryTotal();
for (int i = cnt-1; i >=0; i--) {
if (!OrderSelect(i, SELECT_BY_POS, MODE_HISTORY)) continue;
if (OrderSymbol() != Symbol()) continue;
if (OrderMagicNumber() != Magic) continue;
int type = OrderType();
if (type != OP_BUY && type != OP_SELL) continue;
if (OrderProfit()+OrderSwap()+OrderCommission() > 0) break;
PosCnt++;
}
return (PosCnt);
}
Add one more condition: if the closing time of the order is less than the opening time of the current D1 candle, then continue;
Thank you.
Thank you.
Not quite like this.
Like this - OrderSymbol()
Or like this:
Not quite like this.
Like this - OrderSymbol()
Thank you.
Dear. Please advise how to add text to the EA input parameters window.
input bool MetaQuotes = true;
input double MetaQuotes = 20.3;
input string MetaQuotes = "Corp";
input bool MetaQuotes = true;
input double MetaQuotes = 20.3;
input string MetaQuotes = "Corp";
Thanks + in rep. Figured it out, I read the tutorial about externalinput variables, it's not very well described. It's clearer and more obvious from the example.
Thanks + in rep. Figured it out, I read the tutorial about externalinput variables, it's not very well described. It's clearer and clearer in the example.
If you add comments to each line, it'll be more interesting:
input bool MetaQuotes2 = true; // Описание входного параметра 2
input double MetaQuotes3 = 20.3; // Описание входного параметра 3
input string MetaQuotes4 = "Corp"; // Описание входного параметра 4
and if you make an enumeration and use it instead of a bool, it's even more interesting:
{
enYes = 1, // Да
enNo = 0, // Нет
};
input int MetaQuotes1 = 30; // Описание входного параметра 1
input enumYN MetaQuotes2 = enYes; // Описание входного параметра 2
input double MetaQuotes3 = 20.3; // Описание входного параметра 3
input string MetaQuotes4 = "Corp"; // Описание входного параметра 4
and sinput allows you to exclude a variable from the list of variables for optimization. For example, the variable MetaQuotes4 in this context is not necessary for optimization, and it can be excluded:
{
enYes = 1, // Да
enNo = 0, // Нет
};
input int MetaQuotes1 = 30; // Описание входного параметра 1
input enumYN MetaQuotes2 = enYes; // Описание входного параметра 2
input double MetaQuotes3 = 20.3; // Описание входного параметра 3
sinput string MetaQuotes4 = "Corp"; // Описание входного параметра 4