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//+------------------------------------------------------------------+
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//| Stochastic_HeikenAshi.mq5 |
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//| Copyright 2025, xxxxxxxx |
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//| |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2025, xxxxxxxx"
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#property link ""
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#property version "1.01" // Corrected calculation loops to prevent array errors
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#property description "Stochastic Oscillator on Heiken Ashi data"
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#include <MyIncludes\HA_Tools.mqh>
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//--- Indicator Window and Level Properties ---
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#property indicator_separate_window
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#property indicator_buffers 5 // %K, %D, and 3 calculation buffers
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#property indicator_plots 2
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#property indicator_level1 20.0
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#property indicator_level2 80.0
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#property indicator_minimum 0.0
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#property indicator_maximum 100.0
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//--- Plot 1: %K line (Main)
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#property indicator_label1 "HA_%K"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrLightSeaGreen
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- Plot 2: %D line (Signal)
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#property indicator_label2 "HA_%D"
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#property indicator_type2 DRAW_LINE
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#property indicator_color2 clrRed
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#property indicator_style2 STYLE_DOT
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#property indicator_width2 1
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//--- Input Parameters ---
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input int InpKPeriod = 5;
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input int InpDPeriod = 3;
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input int InpSlowing = 3;
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//--- Indicator Buffers ---
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double BufferHA_K[];
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double BufferHA_D[];
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double BufferRawK[];
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double BufferHighest[];
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double BufferLowest[];
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//--- Global Objects and Variables ---
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int ExtKPeriod, ExtDPeriod, ExtSlowing;
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CHA_Calculator g_ha_calculator;
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//--- Forward declarations for helper functions ---
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double Highest(const double &array[], int period, int current_pos);
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double Lowest(const double &array[], int period, int current_pos);
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function. |
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//+------------------------------------------------------------------+
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void OnInit()
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{
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ExtKPeriod = (InpKPeriod < 1) ? 1 : InpKPeriod;
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ExtDPeriod = (InpDPeriod < 1) ? 1 : InpDPeriod;
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ExtSlowing = (InpSlowing < 1) ? 1 : InpSlowing;
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SetIndexBuffer(0, BufferHA_K, INDICATOR_DATA);
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SetIndexBuffer(1, BufferHA_D, INDICATOR_DATA);
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SetIndexBuffer(2, BufferRawK, INDICATOR_CALCULATIONS);
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SetIndexBuffer(3, BufferHighest, INDICATOR_CALCULATIONS);
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SetIndexBuffer(4, BufferLowest, INDICATOR_CALCULATIONS);
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ArraySetAsSeries(BufferHA_K, false);
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ArraySetAsSeries(BufferHA_D, false);
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ArraySetAsSeries(BufferRawK, false);
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ArraySetAsSeries(BufferHighest, false);
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ArraySetAsSeries(BufferLowest, false);
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IndicatorSetInteger(INDICATOR_DIGITS, 2);
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PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, ExtKPeriod + ExtSlowing - 2);
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PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, ExtKPeriod + ExtSlowing + ExtDPeriod - 3);
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IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HA_Stoch(%d,%d,%d)", ExtKPeriod, ExtDPeriod, ExtSlowing));
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}
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//+------------------------------------------------------------------+
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//| Stochastic Oscillator on Heiken Ashi calculation function. |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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if(rates_total < ExtKPeriod + ExtSlowing + ExtDPeriod)
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return(0);
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//--- STEP 1: Calculate Heiken Ashi bars
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if(!g_ha_calculator.Calculate(rates_total, 0, open, high, low, close))
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return(0);
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//--- STEP 2, 3, 4, 5: Main calculation loop from past to present
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for(int i = 0; i < rates_total; i++)
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{
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// --- Calculate Highest and Lowest for Raw %K ---
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if(i >= ExtKPeriod - 1)
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{
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BufferHighest[i] = Highest(g_ha_calculator.ha_high, ExtKPeriod, i);
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BufferLowest[i] = Lowest(g_ha_calculator.ha_low, ExtKPeriod, i);
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double range = BufferHighest[i] - BufferLowest[i];
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if(range > 0)
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BufferRawK[i] = (g_ha_calculator.ha_close[i] - BufferLowest[i]) / range * 100.0;
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else
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BufferRawK[i] = (i > 0) ? BufferRawK[i-1] : 50.0;
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}
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else
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{
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// Not enough data yet for these buffers
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BufferHighest[i] = 0;
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BufferLowest[i] = 0;
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BufferRawK[i] = 0;
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}
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// --- Calculate Slow %K (Main Line) ---
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if(i >= ExtKPeriod + ExtSlowing - 2)
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{
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double sum = 0;
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for(int j = 0; j < ExtSlowing; j++)
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{
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sum += BufferRawK[i-j];
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}
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BufferHA_K[i] = sum / ExtSlowing;
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}
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else
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{
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BufferHA_K[i] = 0; // Not enough data yet
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}
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// --- Calculate %D (Signal Line) ---
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if(i >= ExtKPeriod + ExtSlowing + ExtDPeriod - 3)
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{
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double sum = 0;
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for(int j = 0; j < ExtDPeriod; j++)
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{
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sum += BufferHA_K[i-j];
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}
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BufferHA_D[i] = sum / ExtDPeriod;
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}
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else
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{
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BufferHA_D[i] = 0; // Not enough data yet
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}
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}
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return(rates_total);
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}
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// ... (Highest and Lowest functions remain the same) ...
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double Highest(const double &array[], int period, int current_pos)
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{
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double res = array[current_pos];
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for(int i = 1; i < period; i++)
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{
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int index = current_pos - i;
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if(index < 0)
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break;
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if(res < array[index])
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res = array[index];
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}
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return(res);
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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double Lowest(const double &array[], int period, int current_pos)
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{
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double res = array[current_pos];
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for(int i = 1; i < period; i++)
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{
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int index = current_pos - i;
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if(index < 0)
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break;
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if(res > array[index])
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res = array[index];
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}
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return(res);
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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