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//+------------------------------------------------------------------+
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//| StochRSI_Slow_HeikinAshi.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 "2.00" // Refactored to be self-contained, no iCustom
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#property description "Slow Stochastic on a Heikin Ashi based RSI"
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//--- Custom Toolkit Include ---
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#include <MyIncludes\HeikinAshi_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 4 // %K, %D, RawK, and HA_RSI buffer
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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 -10.0
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#property indicator_maximum 110.0
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//--- Plot 1: %K line (Slow)
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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 InpLengthRSI = 14; // RSI Length
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input int InpLengthStoch = 14; // Stochastic %K Period
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input int InpSlowing = 3; // Slowing Period
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input int InpSmoothD = 3; // %D Smoothing Period
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//--- Indicator Buffers ---
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double BufferK[];
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double BufferD[];
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double BufferHA_RSI[];
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double BufferRawStochK[];
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//--- Global Objects and Variables ---
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int g_ExtLengthRSI, g_ExtLengthStoch, g_ExtSlowing, g_ExtSmoothD;
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CHeikinAshi_RSI_Calculator *g_ha_rsi_calculator; // Pointer to our HA_RSI 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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int OnInit()
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{
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g_ExtLengthRSI = (InpLengthRSI < 1) ? 1 : InpLengthRSI;
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g_ExtLengthStoch = (InpLengthStoch < 1) ? 1 : InpLengthStoch;
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g_ExtSlowing = (InpSlowing < 1) ? 1 : InpSlowing;
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g_ExtSmoothD = (InpSmoothD < 1) ? 1 : InpSmoothD;
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SetIndexBuffer(0, BufferK, INDICATOR_DATA);
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SetIndexBuffer(1, BufferD, INDICATOR_DATA);
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SetIndexBuffer(2, BufferHA_RSI, INDICATOR_CALCULATIONS);
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SetIndexBuffer(3, BufferRawStochK, INDICATOR_CALCULATIONS);
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ArraySetAsSeries(BufferK, false);
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ArraySetAsSeries(BufferD, false);
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ArraySetAsSeries(BufferHA_RSI, false);
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ArraySetAsSeries(BufferRawStochK, false);
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IndicatorSetInteger(INDICATOR_DIGITS, 2);
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PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, g_ExtLengthRSI + g_ExtLengthStoch + g_ExtSlowing - 3);
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PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, g_ExtLengthRSI + g_ExtLengthStoch + g_ExtSlowing + g_ExtSmoothD - 4);
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IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HA_StochRSI_Slow(%d,%d,%d,%d)", g_ExtLengthRSI, g_ExtLengthStoch, g_ExtSlowing, g_ExtSmoothD));
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//--- Create the calculator instance
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g_ha_rsi_calculator = new CHeikinAshi_RSI_Calculator();
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if(CheckPointer(g_ha_rsi_calculator) == POINTER_INVALID)
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{
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Print("Error creating CHeikinAshi_RSI_Calculator object");
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return(INIT_FAILED);
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}
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator deinitialization function. |
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//+------------------------------------------------------------------+
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void OnDeinit(const int reason)
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{
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//--- Free the calculator object
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if(CheckPointer(g_ha_rsi_calculator) != POINTER_INVALID)
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{
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delete g_ha_rsi_calculator;
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g_ha_rsi_calculator = NULL;
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}
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}
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//+------------------------------------------------------------------+
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//| Slow StochRSI on Heikin 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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int start_pos = g_ExtLengthRSI + g_ExtLengthStoch + g_ExtSlowing + g_ExtSmoothD - 3;
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if(rates_total <= start_pos)
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return(0);
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//--- STEP 1: Calculate Heikin Ashi RSI values using our toolkit
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if(!g_ha_rsi_calculator.Calculate(rates_total, g_ExtLengthRSI, open, high, low, close, BufferHA_RSI))
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{
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Print("Heikin Ashi RSI calculation failed.");
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return(0);
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}
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//--- STEP 2: Calculate Raw Stochastic %K on the HA_RSI buffer
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int raw_k_start_pos = g_ExtLengthRSI + g_ExtLengthStoch - 2;
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for(int i = raw_k_start_pos; i < rates_total; i++)
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{
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double highest_ha_rsi = Highest(BufferHA_RSI, g_ExtLengthStoch, i);
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double lowest_ha_rsi = Lowest(BufferHA_RSI, g_ExtLengthStoch, i);
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double range = highest_ha_rsi - lowest_ha_rsi;
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if(range > 0.00001)
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BufferRawStochK[i] = (BufferHA_RSI[i] - lowest_ha_rsi) / range * 100.0;
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else
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BufferRawStochK[i] = (i > 0) ? BufferRawStochK[i-1] : 50.0;
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}
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//--- STEP 3: Calculate Slow %K (Main Line) by smoothing Raw %K
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int k_slow_start_pos = g_ExtLengthRSI + g_ExtLengthStoch + g_ExtSlowing - 3;
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for(int i = k_slow_start_pos; i < rates_total; i++)
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{
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double sum = 0;
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for(int j = 0; j < g_ExtSlowing; j++)
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{
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sum += BufferRawStochK[i-j];
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}
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BufferK[i] = sum / g_ExtSlowing;
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}
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//--- STEP 4: Calculate %D (Signal Line) by smoothing Slow %K
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int d_start_pos = g_ExtLengthRSI + g_ExtLengthStoch + g_ExtSlowing + g_ExtSmoothD - 4;
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for(int i = d_start_pos; i < rates_total; i++)
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{
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double sum = 0;
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for(int j = 0; j < g_ExtSmoothD; j++)
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{
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sum += BufferK[i-j];
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}
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BufferD[i] = sum / g_ExtSmoothD;
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}
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//| Finds the highest value in a given period of an array. |
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//+------------------------------------------------------------------+
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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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//| Finds the lowest value in a given period of an array. |
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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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