MQL5Book/Scripts/p6/SymbolFilterMarginStats.mq5
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2025-05-30 16:09:41 +02:00

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MQL5

//+------------------------------------------------------------------+
//| SymbolFilterMarginStats.mq5 |
//| Copyright 2022, MetaQuotes Ltd. |
//| https://www.mql5.com |
//| Print out margin settings stats and per symbol |
//+------------------------------------------------------------------+
#property script_show_inputs
#include "..\..\Include\SymbolFilter.mqh"
input bool UseMarketWatch = false;
input bool ShowPerSymbolDetails = false;
input bool ExcludeZeroInitMargin = false;
input bool ExcludeZeroMainMargin = false;
input bool ExcludeZeroHedgeMargin = false;
//+------------------------------------------------------------------+
//| Composite struct to hold all requested properties per symbol |
//+------------------------------------------------------------------+
struct MarginSettings
{
string name;
ENUM_SYMBOL_CALC_MODE calcMode;
bool hedgeLeg;
double initial;
double maintenance;
double hedged;
};
//+------------------------------------------------------------------+
//| Script program start function |
//+------------------------------------------------------------------+
void OnStart()
{
SymbolFilter f; // filter object
string symbols[]; // array for names
long flags[][2]; // array of int/long tuples as output
double values[][3]; // array of double tuples as output
MarginSettings margins[]; // composite output
MapArray<ENUM_SYMBOL_CALC_MODE,int> stats; // counters per mode
int hedgeLeg = 0; // and other counters
int zeroInit = 0; // ...
int zeroMaintenance = 0;
int zeroHedged = 0;
// integer properties to read from symbols
ENUM_SYMBOL_INFO_INTEGER ints[] =
{
SYMBOL_TRADE_CALC_MODE,
SYMBOL_MARGIN_HEDGED_USE_LEG
};
// double properties to read from symbols
ENUM_SYMBOL_INFO_DOUBLE doubles[] =
{
SYMBOL_MARGIN_INITIAL,
SYMBOL_MARGIN_MAINTENANCE,
SYMBOL_MARGIN_HEDGED
};
// add conditions if some specified
if(ExcludeZeroInitMargin) f.let(SYMBOL_MARGIN_INITIAL, 0, IS::GREATER);
if(ExcludeZeroMainMargin) f.let(SYMBOL_MARGIN_MAINTENANCE, 0, IS::GREATER);
if(ExcludeZeroHedgeMargin) f.let(SYMBOL_MARGIN_HEDGED, 0, IS::GREATER);
// apply the filter and collect integer flags for symbols
f.select(UseMarketWatch, ints, symbols, flags);
const int n = ArraySize(symbols);
ArrayResize(symbols, 0, n);
// apply the filter and collect double flags for symbols
f.select(UseMarketWatch, doubles, symbols, values);
if(ShowPerSymbolDetails) ArrayResize(margins, n);
// calculate statistics and assemble integer and double properties
// per symbol into common struct with symbol name
for(int i = 0; i < n; ++i)
{
stats.inc((ENUM_SYMBOL_CALC_MODE)flags[i][0]);
hedgeLeg += (int)flags[i][1];
if(values[i][0] == 0) zeroInit++;
if(values[i][1] == 0) zeroMaintenance++;
if(values[i][2] == 0) zeroHedged++;
if(ShowPerSymbolDetails)
{
margins[i].name = symbols[i];
margins[i].calcMode = (ENUM_SYMBOL_CALC_MODE)flags[i][0];
margins[i].hedgeLeg = (bool)flags[i][1];
margins[i].initial = values[i][0];
margins[i].maintenance = values[i][1];
margins[i].hedged = values[i][2];
}
}
PrintFormat("===== Margin calculation modes for %s symbols %s=====",
(UseMarketWatch ? "Market Watch" : "all available"),
(ExcludeZeroInitMargin || ExcludeZeroMainMargin || ExcludeZeroHedgeMargin
? "(with conditions) " : ""));
PrintFormat("Total symbols: %d", n);
PrintFormat("Hedge leg used in: %d", hedgeLeg);
PrintFormat("Zero margin counts: initial=%d, maintenance=%d, hedged=%d",
zeroInit, zeroMaintenance, zeroHedged);
Print("Stats per calculation mode:");
stats.print();
Print("Legend: key=calculation mode, value=count");
for(int i = 0; i < stats.getSize(); ++i)
{
PrintFormat("%d -> %s", stats.getKey(i), EnumToString(stats.getKey(i)));
}
if(ShowPerSymbolDetails)
{
Print("Settings per symbol:");
ArrayPrint(margins);
}
}
//+------------------------------------------------------------------+
/*
example output (1-st run with default settings):
===== Margin calculation modes for all available symbols =====
Total symbols: 131
Hedge leg used in: 14
Zero margin counts: initial=123, maintenance=130, hedged=32
Stats per calculation mode:
[key] [value]
[0] 0 101
[1] 4 16
[2] 1 1
[3] 2 11
[4] 5 2
Legend: key=calculation mode, value=count
0 -> SYMBOL_CALC_MODE_FOREX
4 -> SYMBOL_CALC_MODE_CFDLEVERAGE
1 -> SYMBOL_CALC_MODE_FUTURES
2 -> SYMBOL_CALC_MODE_CFD
5 -> SYMBOL_CALC_MODE_FOREX_NO_LEVERAGE
example output (2-nd run, ShowPerSymbolDetails=true, ExcludeZeroInitMargin=true):
===== Margin calculation modes for all available symbols (with conditions) =====
Total symbols: 8
Hedge leg used in: 0
Zero margin counts: initial=0, maintenance=7, hedged=0
Stats per calculation mode:
[key] [value]
[0] 0 5
[1] 1 1
[2] 5 2
Legend: key=calculation mode, value=count
0 -> SYMBOL_CALC_MODE_FOREX
1 -> SYMBOL_CALC_MODE_FUTURES
5 -> SYMBOL_CALC_MODE_FOREX_NO_LEVERAGE
Settings per symbol:
[name] [calcMode] [hedgeLeg] [initial] [maintenance] [hedged]
[0] "XAUEUR" 0 false 100.00000 0.00000 50.00000
[1] "XAUAUD" 0 false 100.00000 0.00000 100.00000
[2] "XAGEUR" 0 false 1000.00000 0.00000 1000.00000
[3] "USDGEL" 0 false 100000.00000 100000.00000 50000.00000
[4] "SP500m" 1 false 6600.00000 0.00000 6600.00000
[5] "XBRUSD" 5 false 100.00000 0.00000 50.00000
[6] "XNGUSD" 0 false 10000.00000 0.00000 10000.00000
[7] "XTIUSD" 5 false 100.00000 0.00000 50.00000
*/
//+------------------------------------------------------------------+