82 lines
3.2 KiB
MQL5
82 lines
3.2 KiB
MQL5
//+------------------------------------------------------------------+
|
|
//| TRIX.mq5 |
|
|
//| Copyright 2000-2025, MetaQuotes Ltd. |
|
|
//| https://www.mql5.com |
|
|
//+------------------------------------------------------------------+
|
|
#property copyright "Copyright 2000-2025, MetaQuotes Ltd."
|
|
#property link "https://www.mql5.com"
|
|
#property description "Triple Exponential Average"
|
|
#include <MovingAverages.mqh>
|
|
//--- indicator settings
|
|
#property indicator_separate_window
|
|
#property indicator_buffers 4
|
|
#property indicator_plots 1
|
|
#property indicator_type1 DRAW_LINE
|
|
#property indicator_color1 clrRed
|
|
#property indicator_width1 1
|
|
#property indicator_label1 "TRIX"
|
|
#property indicator_applied_price PRICE_CLOSE
|
|
//--- input parameters
|
|
input int InpPeriodEMA=14; // EMA period
|
|
//--- indicator buffers
|
|
double TRIX_Buffer[];
|
|
double EMA[];
|
|
double SecondEMA[];
|
|
double ThirdEMA[];
|
|
//+------------------------------------------------------------------+
|
|
//| Custom indicator initialization function |
|
|
//+------------------------------------------------------------------+
|
|
void OnInit()
|
|
{
|
|
//--- indicator buffers mapping
|
|
SetIndexBuffer(0,TRIX_Buffer,INDICATOR_DATA);
|
|
SetIndexBuffer(1,EMA,INDICATOR_CALCULATIONS);
|
|
SetIndexBuffer(2,SecondEMA,INDICATOR_CALCULATIONS);
|
|
SetIndexBuffer(3,ThirdEMA,INDICATOR_CALCULATIONS);
|
|
//--- sets first bar from what index will be drawn
|
|
PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,3*InpPeriodEMA-3);
|
|
//--- name for index label
|
|
string short_name=StringFormat("TRIX(%d)",InpPeriodEMA);
|
|
IndicatorSetString(INDICATOR_SHORTNAME,short_name);
|
|
PlotIndexSetString(0,PLOT_LABEL,short_name);
|
|
//--- indicator digits
|
|
IndicatorSetInteger(INDICATOR_DIGITS,5);
|
|
}
|
|
//+------------------------------------------------------------------+
|
|
//| Triple Exponential Average |
|
|
//+------------------------------------------------------------------+
|
|
int OnCalculate(const int rates_total,
|
|
const int prev_calculated,
|
|
const int begin,
|
|
const double &price[])
|
|
{
|
|
if(rates_total<3*InpPeriodEMA-3)
|
|
return(0);
|
|
//---
|
|
int start;
|
|
if(prev_calculated==0)
|
|
{
|
|
start=3*(InpPeriodEMA-1);
|
|
for(int i=0; i<start; i++)
|
|
TRIX_Buffer[i]=EMPTY_VALUE;
|
|
}
|
|
else
|
|
start=prev_calculated-1;
|
|
//--- calculate EMA
|
|
ExponentialMAOnBuffer(rates_total,prev_calculated,0,InpPeriodEMA,price,EMA);
|
|
//--- calculate EMA on EMA array
|
|
ExponentialMAOnBuffer(rates_total,prev_calculated,InpPeriodEMA-1,InpPeriodEMA,EMA,SecondEMA);
|
|
//--- calculate EMA on EMA array on EMA array
|
|
ExponentialMAOnBuffer(rates_total,prev_calculated,2*InpPeriodEMA-2,InpPeriodEMA,SecondEMA,ThirdEMA);
|
|
//--- calculate TRIX
|
|
for(int i=start; i<rates_total && !IsStopped(); i++)
|
|
{
|
|
if(ThirdEMA[i-1]!=0.0)
|
|
TRIX_Buffer[i]=(ThirdEMA[i]-ThirdEMA[i-1])/ThirdEMA[i-1];
|
|
else
|
|
TRIX_Buffer[i]=0.0;
|
|
}
|
|
//--- OnCalculate done. Return new prev_calculated.
|
|
return(rates_total);
|
|
}
|
|
//+------------------------------------------------------------------+
|