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Toh4iem9
2026-08-24 15:48:50 +02:00
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//+------------------------------------------------------------------+
//| KScore_Calculator.mqh|
//| Engine for Kaufman Adaptive Z-Score (K-Score) Calculation. |
//| Standard Deviation distance from KAMA in Sigma units. |
//| Copyright 2026, xxxxxxxx|
//+------------------------------------------------------------------+
#property copyright "Copyright 2026, xxxxxxxx"
#property version "1.00" // Performance-optimized KAMA Z-Score Engine
#ifndef KSCORE_CALCULATOR_MQH
#define KSCORE_CALCULATOR_MQH
#include <MyIncludes\KAMA_Calculator.mqh>
//+==================================================================+
//| CLASS: CKScoreCalculator |
//+==================================================================+
class CKScoreCalculator
{
private:
int m_er_period;
int m_stdev_period;
ENUM_APPLIED_PRICE_HA_ALL m_source_type;
//--- Persistent State Buffers
double m_price[];
double m_kama_buffer[];
double m_ha_open[], m_ha_high[], m_ha_low[], m_ha_close[];
//--- Composition Engines
CKamaCalculator m_kama_calc;
CHeikinAshi_Calculator m_ha_engine;
//--- Internal Methods
bool PreparePriceSeries(const int rates_total,
const int start_index,
const double &open[],
const double &high[],
const double &low[],
const double &close[]);
public:
CKScoreCalculator(void);
~CKScoreCalculator(void) {};
bool Init(const int er_p, const int fast_p, const int slow_p, const int stdev_p, const ENUM_APPLIED_PRICE_HA_ALL source);
int GetRequiredWarmup(void) const { return MathMax(m_er_period, m_stdev_period); }
void Calculate(const int rates_total,
const int prev_calculated,
const double &open[],
const double &high[],
const double &low[],
const double &close[],
double &out_kscore[]);
};
//+------------------------------------------------------------------+
//| Constructor |
//+------------------------------------------------------------------+
CKScoreCalculator::CKScoreCalculator(void) : m_er_period(10),
m_stdev_period(20),
m_source_type(PRICE_CLOSE_STD)
{
ArraySetAsSeries(m_price, false);
ArraySetAsSeries(m_kama_buffer, false);
ArraySetAsSeries(m_ha_open, false);
ArraySetAsSeries(m_ha_high, false);
ArraySetAsSeries(m_ha_low, false);
ArraySetAsSeries(m_ha_close, false);
}
//+------------------------------------------------------------------+
//| Initialization |
//+------------------------------------------------------------------+
bool CKScoreCalculator::Init(const int er_p, const int fast_p, const int slow_p, const int stdev_p, const ENUM_APPLIED_PRICE_HA_ALL source)
{
m_er_period = (er_p < 1) ? 1 : er_p;
m_stdev_period = (stdev_p < 2) ? 2 : stdev_p;
m_source_type = source;
return m_kama_calc.Init(m_er_period, fast_p, slow_p, source);
}
//+------------------------------------------------------------------+
//| Prepare Price Series (Standard / Heikin Ashi) |
//+------------------------------------------------------------------+
bool CKScoreCalculator::PreparePriceSeries(const int rates_total,
const int start_index,
const double &open[],
const double &high[],
const double &low[],
const double &close[])
{
if(ArraySize(m_price) != rates_total)
{
ArrayResize(m_price, rates_total);
ArraySetAsSeries(m_price, false);
}
bool is_heikin_ashi = (m_source_type <= PRICE_HA_CLOSE);
if(is_heikin_ashi)
{
if(ArraySize(m_ha_open) != rates_total)
{
ArrayResize(m_ha_open, rates_total);
ArrayResize(m_ha_high, rates_total);
ArrayResize(m_ha_low, rates_total);
ArrayResize(m_ha_close, rates_total);
ArraySetAsSeries(m_ha_open, false);
ArraySetAsSeries(m_ha_high, false);
ArraySetAsSeries(m_ha_low, false);
ArraySetAsSeries(m_ha_close, false);
}
m_ha_engine.Calculate(rates_total, start_index, open, high, low, close,
m_ha_open, m_ha_high, m_ha_low, m_ha_close);
for(int i = start_index; i < rates_total; i++)
{
switch(m_source_type)
{
case PRICE_HA_OPEN:
m_price[i] = m_ha_open[i];
break;
case PRICE_HA_HIGH:
m_price[i] = m_ha_high[i];
break;
case PRICE_HA_LOW:
m_price[i] = m_ha_low[i];
break;
case PRICE_HA_MEDIAN:
m_price[i] = (m_ha_high[i] + m_ha_low[i]) / 2.0;
break;
case PRICE_HA_TYPICAL:
m_price[i] = (m_ha_high[i] + m_ha_low[i] + m_ha_close[i]) / 3.0;
break;
case PRICE_HA_WEIGHTED:
m_price[i] = (m_ha_high[i] + m_ha_low[i] + 2.0 * m_ha_close[i]) / 4.0;
break;
case PRICE_HA_CLOSE:
default:
m_price[i] = m_ha_close[i];
break;
}
}
}
else
{
for(int i = start_index; i < rates_total; i++)
{
switch(m_source_type)
{
case PRICE_OPEN_STD:
m_price[i] = open[i];
break;
case PRICE_HIGH_STD:
m_price[i] = high[i];
break;
case PRICE_LOW_STD:
m_price[i] = low[i];
break;
case PRICE_MEDIAN_STD:
m_price[i] = (high[i] + low[i]) / 2.0;
break;
case PRICE_TYPICAL_STD:
m_price[i] = (high[i] + low[i] + close[i]) / 3.0;
break;
case PRICE_WEIGHTED_STD:
m_price[i] = (high[i] + low[i] + 2.0 * close[i]) / 4.0;
break;
case PRICE_CLOSE_STD:
default:
m_price[i] = close[i];
break;
}
}
}
return true;
}
//+------------------------------------------------------------------+
//| Main Incremental K-Score Calculation Loop |
//+------------------------------------------------------------------+
void CKScoreCalculator::Calculate(const int rates_total,
const int prev_calculated,
const double &open[],
const double &high[],
const double &low[],
const double &close[],
double &out_kscore[])
{
int warmup = GetRequiredWarmup();
if(rates_total <= warmup)
return;
int start_prep = (prev_calculated > 0) ? prev_calculated - 1 : 0;
// 1. Prepare Underlying Price Data
if(!PreparePriceSeries(rates_total, start_prep, open, high, low, close))
return;
// 2. Resize & Calculate KAMA Baseline
if(ArraySize(m_kama_buffer) != rates_total)
{
ArrayResize(m_kama_buffer, rates_total);
ArraySetAsSeries(m_kama_buffer, false);
}
m_kama_calc.Calculate(rates_total, prev_calculated, open, high, low, close, m_kama_buffer);
// 3. Clean invalid range on fresh run
if(prev_calculated == 0)
{
for(int i = 0; i < warmup; i++)
out_kscore[i] = 0.0;
}
int start_index = (prev_calculated > 0) ? prev_calculated - 1 : warmup;
if(start_index < warmup)
start_index = warmup;
// 4. Calculate K-Score (Standard Deviation Distance from KAMA)
for(int i = start_index; i < rates_total; i++)
{
if(m_kama_buffer[i] == EMPTY_VALUE)
{
out_kscore[i] = 0.0;
continue;
}
double sum_sq = 0.0;
for(int k = 0; k < m_stdev_period; k++)
{
double diff = m_price[i - k] - m_kama_buffer[i];
sum_sq += diff * diff;
}
double std_dev = MathSqrt(sum_sq / (double)m_stdev_period);
if(std_dev > 1.0e-9)
out_kscore[i] = (m_price[i] - m_kama_buffer[i]) / std_dev;
else
out_kscore[i] = 0.0;
}
}
#endif // KSCORE_CALCULATOR_MQH
//+------------------------------------------------------------------+