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Toh4iem9
2025-08-23 15:12:47 +02:00
parent b557015cb6
commit dc1550b0cb
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Indicators/MyIndicators/WPR.mq5
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//+------------------------------------------------------------------+
//| WPR.mq5 |
//| Copyright 2025, xxxxxxxx |
//| |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx"
#property link ""
#property version "2.00" // Refactored for stability and clarity
#property description "Larry Williams' Percent Range"
//--- Indicator Window and Level Properties ---
#property indicator_separate_window
#property indicator_level1 -20.0
#property indicator_level2 -80.0
#property indicator_levelstyle STYLE_DOT
#property indicator_levelcolor clrSilver
#property indicator_levelwidth 1
#property indicator_maximum 0.0
#property indicator_minimum -100.0
//--- Buffers and Plots ---
#property indicator_buffers 1
#property indicator_plots 1
//--- Plot 1: WPR line
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrDodgerBlue
#property indicator_label1 "WPR"
//--- Input Parameters ---
input int InpWPRPeriod = 14; // Period for WPR calculation
//--- Indicator Buffers ---
double BufferWPR[];
//--- Global Variables ---
int g_ExtWPRPeriod;
//--- Forward declarations for helper functions ---
double Highest(const double &array[], int period, int current_pos);
double Lowest(const double &array[], int period, int current_pos);
//+------------------------------------------------------------------+
//| Custom indicator initialization function. |
//+------------------------------------------------------------------+
int OnInit()
{
g_ExtWPRPeriod = (InpWPRPeriod < 1) ? 1 : InpWPRPeriod;
SetIndexBuffer(0, BufferWPR, INDICATOR_DATA);
ArraySetAsSeries(BufferWPR, false);
PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, g_ExtWPRPeriod - 1);
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("WPR(%d)", g_ExtWPRPeriod));
IndicatorSetInteger(INDICATOR_DIGITS, 2);
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Williams’ Percent Range 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[])
{
if(rates_total < g_ExtWPRPeriod)
return(0);
//--- Main calculation loop
for(int i = g_ExtWPRPeriod - 1; i < rates_total; i++)
{
double highest_high = Highest(high, g_ExtWPRPeriod, i);
double lowest_low = Lowest(low, g_ExtWPRPeriod, i);
double range = highest_high - lowest_low;
if(range > 0)
BufferWPR[i] = -100.0 * (highest_high - close[i]) / range;
else
BufferWPR[i] = (i > 0) ? BufferWPR[i-1] : -50.0; // Avoid division by zero
}
return(rates_total);
}
//+------------------------------------------------------------------+
//| Finds the highest value in a given period of an array. |
//+------------------------------------------------------------------+
double Highest(const double &array[], int period, int current_pos)
{
double res = array[current_pos];
for(int i = 1; i < period; i++)
{
if(res < array[current_pos - i])
res = array[current_pos - i];
}
return(res);
}
//+------------------------------------------------------------------+
//| Finds the lowest value in a given period of an array. |
//+------------------------------------------------------------------+
double Lowest(const double &array[], int period, int current_pos)
{
double res = array[current_pos];
for(int i = 1; i < period; i++)
{
if(res > array[current_pos - i])
res = array[current_pos - i];
}
return(res);
}
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
//| WPR.mq5 |
//| Copyright 2025, xxxxxxxx |
//| |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx"
#property link ""
#property version "2.00" // Refactored for stability and clarity
#property description "Larry Williams' Percent Range"
//--- Indicator Window and Level Properties ---
#property indicator_separate_window
#property indicator_level1 -20.0
#property indicator_level2 -80.0
#property indicator_levelstyle STYLE_DOT
#property indicator_levelcolor clrSilver
#property indicator_levelwidth 1
#property indicator_maximum 0.0
#property indicator_minimum -100.0
//--- Buffers and Plots ---
#property indicator_buffers 1
#property indicator_plots 1
//--- Plot 1: WPR line
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrDodgerBlue
#property indicator_label1 "WPR"
//--- Input Parameters ---
input int InpWPRPeriod = 14; // Period for WPR calculation
//--- Indicator Buffers ---
double BufferWPR[];
//--- Global Variables ---
int g_ExtWPRPeriod;
//--- Forward declarations for helper functions ---
double Highest(const double &array[], int period, int current_pos);
double Lowest(const double &array[], int period, int current_pos);
//+------------------------------------------------------------------+
//| Custom indicator initialization function. |
//+------------------------------------------------------------------+
int OnInit()
{
g_ExtWPRPeriod = (InpWPRPeriod < 1) ? 1 : InpWPRPeriod;
SetIndexBuffer(0, BufferWPR, INDICATOR_DATA);
ArraySetAsSeries(BufferWPR, false);
PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, g_ExtWPRPeriod - 1);
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("WPR(%d)", g_ExtWPRPeriod));
IndicatorSetInteger(INDICATOR_DIGITS, 2);
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Williams’ Percent Range 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[])
{
if(rates_total < g_ExtWPRPeriod)
return(0);
//--- Main calculation loop
for(int i = g_ExtWPRPeriod - 1; i < rates_total; i++)
{
double highest_high = Highest(high, g_ExtWPRPeriod, i);
double lowest_low = Lowest(low, g_ExtWPRPeriod, i);
double range = highest_high - lowest_low;
if(range > 0)
BufferWPR[i] = -100.0 * (highest_high - close[i]) / range;
else
BufferWPR[i] = (i > 0) ? BufferWPR[i-1] : -50.0; // Avoid division by zero
}
return(rates_total);
}
//+------------------------------------------------------------------+
//| Finds the highest value in a given period of an array. |
//+------------------------------------------------------------------+
double Highest(const double &array[], int period, int current_pos)
{
double res = array[current_pos];
for(int i = 1; i < period; i++)
{
if(res < array[current_pos - i])
res = array[current_pos - i];
}
return(res);
}
//+------------------------------------------------------------------+
//| Finds the lowest value in a given period of an array. |
//+------------------------------------------------------------------+
double Lowest(const double &array[], int period, int current_pos)
{
double res = array[current_pos];
for(int i = 1; i < period; i++)
{
if(res > array[current_pos - i])
res = array[current_pos - i];
}
return(res);
}
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+