95 líneas
6,9 KiB
MQL5
95 líneas
6,9 KiB
MQL5
//+------------------------------------------------------------------+
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//| L1VolatilityNormalized.mq5 |
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//| Copyright 2000-2026, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2000-2026, MetaQuotes Ltd."
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#property link "https://www.mql5.com"
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#property version "1.00"
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#property indicator_separate_window
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#property indicator_buffers 1
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#property indicator_plots 1
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#property indicator_label1 "L1VolatilityNormalized"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrDodgerBlue
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#property indicator_width1 2
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//---
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input int BarsToShow = 1000; // Number of bars to calculate L1
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input double CoefLambda = 0.015; // Lambda in lambda_max units
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//---
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double VolNormalized[];
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//---
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//+------------------------------------------------------------------+
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//| Indicator initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- prepare
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SetIndexBuffer(0, VolNormalized, INDICATOR_DATA);
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ArrayInitialize(VolNormalized, EMPTY_VALUE);
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PlotIndexSetDouble(0, PLOT_EMPTY_VALUE, EMPTY_VALUE);
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
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//---
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return INIT_SUCCEEDED;
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}
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//+------------------------------------------------------------------+
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//| Indicator iteration 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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//--- check bars
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static bool warned=false;
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if(rates_total < BarsToShow)
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{
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if(!warned)
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{
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Print("Waiting for enough bars: ",BarsToShow);
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warned=true;
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}
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ArrayInitialize(VolNormalized,EMPTY_VALUE);
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return 0;
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}
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//--- check new bar
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static datetime last_bar_time=0;
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bool new_bar=(time[0]!=last_bar_time);
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bool need_recalc= (prev_calculated==0) || new_bar || (rates_total!=prev_calculated);
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if(!need_recalc)
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return prev_calculated;
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last_bar_time=time[0];
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int start = rates_total - BarsToShow;
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//---
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for(int i = 0; i < start; i++)
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VolNormalized[i] = EMPTY_VALUE;
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//--- copy close prices
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vector<double> price(BarsToShow);
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for(int i = 0; i < BarsToShow; i++)
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price[i] = close[start + i];
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//---
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vector<double> l1(BarsToShow);
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price.L1TrendFilter(l1, CoefLambda, true);
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//--- compute normalized volatility
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double mean = 0;
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double stddev = 0;
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for(int i = 0; i < BarsToShow; i++)
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mean += close[start + i] - l1[i];
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mean /= BarsToShow;
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//---
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for(int i = 0; i < BarsToShow; i++)
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stddev += MathPow(close[start + i] - l1[i] - mean, 2);
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stddev = MathSqrt(stddev / BarsToShow);
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//---
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for(int i = 0; i < BarsToShow; i++)
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VolNormalized[start + i] = stddev > 0 ? (close[start + i] - l1[i]) / stddev : 0;
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//---
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return rates_total;
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}
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//+------------------------------------------------------------------+
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