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https://github.com/softwaredevelop/mql5.git
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143 lines
4.5 KiB
Plaintext
143 lines
4.5 KiB
Plaintext
//+------------------------------------------------------------------+
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//| McGinleyDynamic.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 "2.01" // Corrected array handling for MQL5 syntax
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#property description "McGinley Dynamic Indicator"
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//--- Indicator Window and Plot Properties ---
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#property indicator_chart_window
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#property indicator_buffers 1
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#property indicator_plots 1
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//--- Plot 1: McGinley Dynamic line
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#property indicator_label1 "McGinley"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrCrimson
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 2
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//--- Input Parameters ---
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input int InpLength = 14; // Period
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input ENUM_APPLIED_PRICE InpAppliedPrice = PRICE_CLOSE; // Applied Price
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//--- Indicator Buffers ---
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double BufferMcGinley[];
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//--- Global Variables ---
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int g_ExtLength;
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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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//--- Validate and store input
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g_ExtLength = (InpLength < 1) ? 1 : InpLength;
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//--- Map the buffer and set as non-timeseries
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SetIndexBuffer(0, BufferMcGinley, INDICATOR_DATA);
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ArraySetAsSeries(BufferMcGinley, false);
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//--- Set indicator display properties
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
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PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, 1);
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IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("McGinley(%d)", g_ExtLength));
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| McGinley Dynamic 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 < 2)
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return(0);
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//--- STEP 1: Prepare the source price array
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double price_source[];
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ArrayResize(price_source, rates_total);
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switch(InpAppliedPrice)
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{
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case PRICE_OPEN:
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ArrayCopy(price_source, open, 0, 0, rates_total);
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break;
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case PRICE_HIGH:
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ArrayCopy(price_source, high, 0, 0, rates_total);
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break;
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case PRICE_LOW:
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ArrayCopy(price_source, low, 0, 0, rates_total);
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break;
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case PRICE_MEDIAN:
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case PRICE_TYPICAL:
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case PRICE_WEIGHTED:
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for(int i=0; i<rates_total; i++)
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{
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switch(InpAppliedPrice)
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{
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case PRICE_MEDIAN:
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price_source[i] = (high[i] + low[i]) / 2.0;
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break;
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case PRICE_TYPICAL:
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price_source[i] = (high[i] + low[i] + close[i]) / 3.0;
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break;
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case PRICE_WEIGHTED:
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price_source[i] = (high[i] + low[i] + 2*close[i]) / 4.0;
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break;
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}
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}
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break;
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default: // PRICE_CLOSE
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ArrayCopy(price_source, close, 0, 0, rates_total);
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break;
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}
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//--- STEP 2: Main calculation loop for McGinley Dynamic
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for(int i = 0; i < rates_total; i++)
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{
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// --- Initialization Step ---
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if(i == 0)
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{
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BufferMcGinley[i] = price_source[i];
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continue;
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}
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// --- Recursive Calculation Step ---
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double prev_mg = BufferMcGinley[i-1];
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if(prev_mg == 0)
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{
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BufferMcGinley[i] = price_source[i];
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continue;
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}
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double denominator = g_ExtLength * MathPow(price_source[i] / prev_mg, 4);
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if(denominator == 0)
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{
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BufferMcGinley[i] = prev_mg;
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continue;
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}
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BufferMcGinley[i] = prev_mg + (price_source[i] - prev_mg) / denominator;
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}
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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