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2026-07-27 20:47:44 +00:00 · 2026-02-04 16:28:00 +01:00
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+//+------------------------------------------------------------------+
+//|                                             TrendQuality_Pro.mq5 |
+//|                                          Copyright 2026, xxxxxxxx|
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2026, xxxxxxxx"
+#property version   "1.00"
+#property description "Kaufman's Efficiency Ratio (ER)."
+#property description "Measures Trend Quality vs Noise (0.0 to 1.0)."
+
+#property indicator_separate_window
+#property indicator_buffers 2
+#property indicator_plots   1
+
+//--- Levels
+#property indicator_level1 0.3
+#property indicator_level2 0.6
+#property indicator_levelcolor clrSilver
+#property indicator_levelstyle STYLE_DOT
+#property indicator_minimum 0.0
+#property indicator_maximum 1.0
+
+//--- Plot: ER Line (Colored)
+#property indicator_label1  "Trend Quality"
+#property indicator_type1   DRAW_COLOR_HISTOGRAM
+#property indicator_color1  clrGray, clrDodgerBlue, clrGold // Noise, Trend, SuperTrend
+#property indicator_style1  STYLE_SOLID
+#property indicator_width1  2
+
+#include <MyIncludes\EfficiencyRatio_Calculator.mqh>
+
+//--- Input Parameters
+input int               InpPeriod      = 10;          // Calculation Period
+input double            InpThreshold   = 0.30;        // Trend Threshold (Purple Line)
+input double            InpStrongLevel = 0.60;        // Strong Trend Level (Gold Line)
+input ENUM_APPLIED_PRICE InpPrice      = PRICE_CLOSE; // Applied Price
+
+//--- Buffers
+double BufferER[];
+double BufferColors[]; // 0=Noise, 1=Trend, 2=Strong
+
+//--- Global Object
+CEfficiencyRatioCalculator *g_calculator;
+
+//+------------------------------------------------------------------+
+//| OnInit                                                           |
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   SetIndexBuffer(0, BufferER, INDICATOR_DATA);
+   SetIndexBuffer(1, BufferColors, INDICATOR_COLOR_INDEX);
+
+   string name = StringFormat("TrendQuality(%d)", InpPeriod);
+   IndicatorSetString(INDICATOR_SHORTNAME, name);
+   IndicatorSetInteger(INDICATOR_DIGITS, 2);
+
+   g_calculator = new CEfficiencyRatioCalculator();
+   if(!g_calculator.Init(InpPeriod))
+      return INIT_FAILED;
+
+   return(INIT_SUCCEEDED);
+  }
+
+//+------------------------------------------------------------------+
+//| OnDeinit                                                         |
+//+------------------------------------------------------------------+
+void OnDeinit(const int reason)
+  {
+   if(CheckPointer(g_calculator) == POINTER_DYNAMIC)
+      delete g_calculator;
+  }
+
+//+------------------------------------------------------------------+
+//| OnCalculate                                                      |
+//+------------------------------------------------------------------+
+int OnCalculate(const int rates_total,
+                const int prev_calculated,
+                const datetime &time[],
+                const double &open[],
+                const double &high[],
+                const double &low[],
+                const double &close[],
+                const long &tick_volume[],
+                const long &volume[],
+                const int &spread[])
+  {
+   if(rates_total < InpPeriod)
+      return 0;
+
+// Calculation
+   g_calculator.Calculate(rates_total, prev_calculated, InpPrice, open, high, low, close, BufferER);
+
+// Coloring Logic
+   int start_index = (prev_calculated > 0) ? prev_calculated - 1 : 0;
+
+   for(int i = start_index; i < rates_total; i++)
+     {
+      double er = BufferER[i];
+
+      if(er > InpStrongLevel)
+         BufferColors[i] = 2.0; // Gold (Super Trend)
+      else
+         if(er > InpThreshold)
+            BufferColors[i] = 1.0; // Blue (Trending)
+         else
+            BufferColors[i] = 0.0; // Gray (Chop/Noise)
+     }
+
+   return(rates_total);
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+