# Trying to Code Indicator similar to Fractals

70

```//+------------------------------------------------------------------+
//|                                        PivotHighLowIndicator.mq4 |
//|                        Copyright 2018, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property version   "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Blue
#property indicator_color2 Blue
#property indicator_color3 Blue

double highs[];
double lows [];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
{
//--- indicator buffers mapping
SetIndexBuffer(0,highs);
SetIndexStyle(0,DRAW_ARROW);
SetIndexArrow(0, 159);
SetIndexBuffer(1,lows);
SetIndexStyle(1,DRAW_ARROW);
SetIndexArrow(1, 159);
//---
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration 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[],
{
//---

int limit = rates_total-prev_calculated;
for(int i=1;limit;i++)
{

if (High[i+1]>High[i]
&& High[i+1]>High[i+2])
{
highs[i+1]=High[i+1];
}

if (Low[i+1]<Low[i]
&&Low[i+1]<Low[i+2])
lows[i+1]=Low[i+1];

}
//--- return value of prev_calculated for next call
return(rates_total);
}
//+------------------------------------------------------------------+
```

Above is code for an indicator that works similar to the fractals concept.

1. The indicator plots a shape above any candle who's high is higher than the following and preceding high. If a candle meets these criteria, the high point is identified as a 'first order pivot high'.

2. I would like to add a secondary function to my code that compares each first order pivot high as follows:

Plot a shape above any first order pivot high that is higher than the following and preceding first order pivot highs. If a candle meets these criteria, the high point is identified as a 'second order pivot high'.

I have managed to do the first stage, but I can't figure out how to implement the secondary stage. Appreciate any advice.