Inclustion of example EA

MyLibs/BacktestUtils/TestDataSplit.mqh

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+// ---------------------------------------------------------------------
+// ENUM: MODE_SPLIT_DATA
+// ---------------------------------------------------------------------
+// Defines how to split data during testing based on time attributes.
+//
+// Values:
+// - NO_SPLIT    : Do not split, always return true.
+// - ODD_YEARS   : Include only odd-numbered years.
+// - EVEN_YEARS  : Include only even-numbered years.
+// - ODD_MONTHS  : Include only odd-numbered months.
+// - EVEN_MONTHS : Include only even-numbered months.
+// - ODD_WEEKS   : Include only odd-numbered weeks.
+// - EVEN_WEEKS  : Include only even-numbered weeks.
+// ---------------------------------------------------------------------
+enum MODE_SPLIT_DATA {
+    NO_SPLIT,   
+    ODD_YEARS,  
+    EVEN_YEARS,
+    ODD_MONTHS,
+    EVEN_MONTHS,
+    ODD_WEEKS,
+    EVEN_WEEKS     
+};
+
+// ---------------------------------------------------------------------
+// CLASS: TestDataSplit
+// ---------------------------------------------------------------------
+// Provides logic to determine whether the current date falls within
+// a selected split group for testing or optimization purposes.
+// ---------------------------------------------------------------------
+class TestDataSplit {
+public:
+    bool in_test_period(MODE_SPLIT_DATA data_split_method);
+};
+
+// ---------------------------------------------------------------------
+// Determines whether the current time falls in the selected group.
+//
+// Parameters:
+// - data_split_method : Enum value defining the split strategy.
+//
+// Logic:
+// - Extracts current date components (year, month, ISO week).
+// - Returns true if current time matches the given split rule.
+// ---------------------------------------------------------------------
+bool TestDataSplit::in_test_period(MODE_SPLIT_DATA data_split_method) {
+    string result[];
+    string string_tc = TimeToString(TimeCurrent());
+
+    // Extract components from datetime string (assumes YYYY.MM.DD format)
+    ushort u_sep = StringGetCharacter(".", 0);
+    StringSplit(string_tc, u_sep, result);
+
+    bool odd_year = int(result[0]) % 2;
+    bool odd_month = int(result[1]) % 2;
+
+    // Calculate week of the year (approximate ISO week)
+    MqlDateTime dt;
+    TimeToStruct(TimeCurrent(), dt);
+    int i_day = (dt.day_of_week + 6) % 7 + 1;               // Convert to 1=Mon,...,7=Sun
+    int i_week = (dt.day_of_year - i_day + 10) / 7;         // Approximate ISO week number
+    bool odd_week = i_week % 2;
+
+    // Split logic depending on mode
+    if (data_split_method == NO_SPLIT)
+        return true;
+    if (data_split_method == ODD_YEARS && odd_year)
+        return true;
+    if (data_split_method == EVEN_YEARS && !odd_year)
+        return true;
+    if (data_split_method == ODD_MONTHS && odd_month)
+        return true;
+    if (data_split_method == EVEN_MONTHS && !odd_month)
+        return true;
+    if (data_split_method == ODD_WEEKS && odd_week)
+        return true;
+    if (data_split_method == EVEN_WEEKS && !odd_week)
+        return true;
+
+    return false;
+}