new files added

This commit is contained in:
Toh4iem9
2025-08-24 12:00:42 +02:00
parent a4fa18013c
commit dd060e52c5
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//+------------------------------------------------------------------+
//| VIDYA_TrendActivity_HeikinAshi.mq5|
//| Copyright 2025, xxxxxxxx |
//| |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx"
#property link ""
#property version "2.00" // Adjusted vertical scale
#property description "Measures the trend activity of a Heikin Ashi VIDYA line using Arctan normalization."
#property description "High values suggest a trending market, low values suggest a flat/ranging market."
#include <MyIncludes\HeikinAshi_Tools.mqh>
//--- Indicator Window and Plot Properties ---
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_plots 1
#property indicator_type1 DRAW_HISTOGRAM
#property indicator_color1 clrDodgerBlue
#property indicator_width1 2
#property indicator_label1 "HA_Activity"
#property indicator_minimum 0.0
#property indicator_maximum 0.5 // Adjusted for better visualization
//--- Enum for selecting Heikin Ashi price source ---
enum ENUM_HA_APPLIED_PRICE
{
HA_PRICE_CLOSE, // Heikin Ashi Close
HA_PRICE_OPEN, // Heikin Ashi Open
HA_PRICE_HIGH, // Heikin Ashi High
HA_PRICE_LOW, // Heikin Ashi Low
};
//--- Input Parameters ---
input group "VIDYA Settings"
input int InpPeriodCMO = 9;
input int InpPeriodEMA = 12;
input ENUM_HA_APPLIED_PRICE InpAppliedPrice = HA_PRICE_CLOSE;
input group "Activity Calculation Settings"
input int InpAtrPeriod = 14;
input int InpSmoothingPeriod = 5;
//--- Indicator Buffers ---
double BufferActivity[];
//--- Global Objects and Variables ---
int g_ExtPeriodCMO, g_ExtPeriodEMA, g_ExtAtrPeriod, g_ExtSmoothingPeriod;
double g_M_PI_2;
CHeikinAshi_Calculator *g_ha_calculator;
//--- Forward declarations ---
double CalculateCMO(int position, int period, const double &price_array[]);
//+------------------------------------------------------------------+
//| Custom indicator initialization function. |
//+------------------------------------------------------------------+
int OnInit()
{
g_ExtPeriodCMO = (InpPeriodCMO < 1) ? 1 : InpPeriodCMO;
g_ExtPeriodEMA = (InpPeriodEMA < 1) ? 1 : InpPeriodEMA;
g_ExtAtrPeriod = (InpAtrPeriod < 1) ? 1 : InpAtrPeriod;
g_ExtSmoothingPeriod = (InpSmoothingPeriod < 1) ? 1 : InpSmoothingPeriod;
g_M_PI_2 = M_PI / 2.0;
SetIndexBuffer(0, BufferActivity, INDICATOR_DATA);
ArraySetAsSeries(BufferActivity, false);
int draw_begin = g_ExtPeriodCMO + g_ExtPeriodEMA + g_ExtAtrPeriod + g_ExtSmoothingPeriod;
PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, draw_begin);
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("HA VIDYA Activity(%d,%d,%d,%d)", g_ExtPeriodCMO, g_ExtPeriodEMA, g_ExtAtrPeriod, g_ExtSmoothingPeriod));
IndicatorSetInteger(INDICATOR_DIGITS, 4);
//--- Programmatically set the vertical scale for better visualization
IndicatorSetDouble(INDICATOR_MINIMUM, 0.0);
IndicatorSetDouble(INDICATOR_MAXIMUM, 0.5);
g_ha_calculator = new CHeikinAshi_Calculator();
if(CheckPointer(g_ha_calculator) == POINTER_INVALID)
{
Print("Error creating CHeikinAshi_Calculator object");
return(INIT_FAILED);
}
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function. |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
if(CheckPointer(g_ha_calculator) != POINTER_INVALID)
{
delete g_ha_calculator;
g_ha_calculator = NULL;
}
}
//+------------------------------------------------------------------+
//| VIDYA Trend Activity on Heikin Ashi calculation function. |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[])
{
int start_pos = g_ExtPeriodCMO + g_ExtPeriodEMA + g_ExtAtrPeriod + g_ExtSmoothingPeriod;
if(rates_total <= start_pos)
return(0);
//--- Intermediate Heikin Ashi Buffers
double ha_open[], ha_high[], ha_low[], ha_close[];
ArrayResize(ha_open, rates_total);
ArrayResize(ha_high, rates_total);
ArrayResize(ha_low, rates_total);
ArrayResize(ha_close, rates_total);
//--- STEP 1: Calculate Heikin Ashi bars
g_ha_calculator.Calculate(rates_total, open, high, low, close, ha_open, ha_high, ha_low, ha_close);
//--- STEP 2: Prepare the Heikin Ashi source price array for VIDYA
double ha_price_source[];
ArrayResize(ha_price_source, rates_total);
switch(InpAppliedPrice)
{
case HA_PRICE_OPEN:
ArrayCopy(ha_price_source, ha_open);
break;
case HA_PRICE_HIGH:
ArrayCopy(ha_price_source, ha_high);
break;
case HA_PRICE_LOW:
ArrayCopy(ha_price_source, ha_low);
break;
default:
ArrayCopy(ha_price_source, ha_close);
break;
}
//--- STEP 3: Calculate Heikin Ashi VIDYA
double buffer_vidya[];
ArrayResize(buffer_vidya, rates_total);
double alpha = 2.0 / (g_ExtPeriodEMA + 1.0);
int vidya_start_pos = g_ExtPeriodCMO + g_ExtPeriodEMA;
for(int i = 1; i < rates_total; i++)
{
if(i == vidya_start_pos)
{
double sum = 0;
for(int j=0; j<g_ExtPeriodEMA; j++)
sum += ha_price_source[i-j];
buffer_vidya[i] = sum / g_ExtPeriodEMA;
continue;
}
if(i > vidya_start_pos)
{
double cmo = MathAbs(CalculateCMO(i, g_ExtPeriodCMO, ha_price_source));
buffer_vidya[i] = ha_price_source[i] * alpha * cmo + buffer_vidya[i-1] * (1 - alpha * cmo);
}
}
//--- STEP 4: Calculate Heikin Ashi ATR
double buffer_atr[];
ArrayResize(buffer_atr, rates_total);
double ha_tr[];
ArrayResize(ha_tr, rates_total);
for(int i = 1; i < rates_total; i++)
{
ha_tr[i] = MathMax(ha_high[i], ha_close[i-1]) - MathMin(ha_low[i], ha_close[i-1]);
}
for(int i = 1; i < rates_total; i++)
{
if(i == g_ExtAtrPeriod)
{
double sum_tr = 0;
for(int j = 1; j <= g_ExtAtrPeriod; j++)
sum_tr += ha_tr[j];
buffer_atr[i] = sum_tr / g_ExtAtrPeriod;
}
else
if(i > g_ExtAtrPeriod)
{
buffer_atr[i] = (buffer_atr[i-1] * (g_ExtAtrPeriod - 1) + ha_tr[i]) / g_ExtAtrPeriod;
}
}
//--- STEP 5: Calculate Raw Activity and Scale it using MathArctan
double scaled_activity[];
ArrayResize(scaled_activity, rates_total);
for(int i = vidya_start_pos + 1; i < rates_total; i++)
{
if(buffer_atr[i] > 0)
{
double raw_activity = MathAbs(buffer_vidya[i] - buffer_vidya[i-1]) / buffer_atr[i];
scaled_activity[i] = MathArctan(raw_activity) / g_M_PI_2;
}
}
//--- STEP 6: Calculate Final Oscillator (SMA of Scaled Activity)
double sum = 0;
int final_start_pos = vidya_start_pos + g_ExtSmoothingPeriod;
for(int i = vidya_start_pos + 1; i < rates_total; i++)
{
sum += scaled_activity[i];
if(i >= final_start_pos)
{
if(i > final_start_pos)
{
sum -= scaled_activity[i - g_ExtSmoothingPeriod];
}
BufferActivity[i] = sum / g_ExtSmoothingPeriod;
}
}
return(rates_total);
}
//+------------------------------------------------------------------+
//| Calculates Chande Momentum Oscillator (CMO) for a given position |
//+------------------------------------------------------------------+
double CalculateCMO(int position, int period, const double &price_array[])
{
if(position < period)
return 0.0;
double sum_up = 0.0;
double sum_down = 0.0;
for(int i = 0; i < period; i++)
{
double diff = price_array[position - i] - price_array[position - i - 1];
if(diff > 0.0)
sum_up += diff;
else
sum_down += (-diff);
}
if(sum_up + sum_down == 0.0)
return 0.0;
return (sum_up - sum_down) / (sum_up + sum_down);
}
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+