Aroon_Up_Down
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This custom indicator is designed to help traders visualize market trends by measuring the strength and "freshness" of price movements. It works by calculating how recently the market has reached its highest and lowest points over a specific timeframe (which you can customize, but defaults to 14 periods).
How it Works
The logic operates by looking backward at a set number of bars on your chart to identify two key milestones: the highest peak reached and the lowest valley touched. Instead of just seeing where these peaks are, the script calculates exactly how many bars ago those points occurred.
- The "Up" Measurement: The tool identifies when the highest price in the recent window occurred. If that high point happened very recently (at the current bar), it suggests a strong bullish momentum.
- The "Down" Measurement: Similarly, the tool identifies when the lowest price in the recent window occurred. If that low point happened very recently, it indicates strong bearish momentum.
How to Interpret the Results
The script translates these time differences into two separate lines plotted on your screen:
- Trend Strength: By calculating the distance between the current bar and the high/low points, the indicator creates a percentage-based score. When a line moves toward the top of its scale (100), it signifies that the market is making new highs or lows aggressively.
- Momentum Shifts: By watching both lines simultaneously, you can see the "tug-of-war" between buyers and sellers. If the "Up" line is high while the "Down" line is low, it suggests a dominant upward trend. When they begin to converge or cross, it may indicate that the current trend is losing steam or that a reversal is beginning.
In essence, this tool removes the guesswork of "how long has it been since we saw a new high?" and provides a constant, visual pulse of market momentum based on time and price history.
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Aroon_Up_Down
//+------------------------------------------------------------------+
//| Custom Aroon Up & Dn.mq4 |
//| rafcamara |
//| |
//+------------------------------------------------------------------+
#property copyright "rafcamara"
#property link "rafcamara@yahoo.com"
//---- indicator settings
#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 DodgerBlue
#property indicator_color2 Red
//---- indicator parameters
extern int AroonPeriod=14;
//---- indicator buffers
double AroonUpBuffer[];
double AroonDnBuffer[];
double HighBarBuffer[];
double LowBarBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- 2 additional buffers are used for counting.
IndicatorBuffers(4);
SetIndexBuffer(0, AroonUpBuffer);
SetIndexBuffer(1, AroonDnBuffer);
SetIndexBuffer(2, HighBarBuffer);
SetIndexBuffer(3, LowBarBuffer);
//---- drawing settings
SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,1);
SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,1);
SetIndexDrawBegin(0,200);
SetIndexDrawBegin(1,200);
IndicatorDigits(1);
//---- indicator buffers mapping
if(!SetIndexBuffer(0,AroonUpBuffer) && !SetIndexBuffer(1,AroonDnBuffer)
&& !SetIndexBuffer(2,HighBarBuffer) && !SetIndexBuffer(3,LowBarBuffer))
Print("cannot set indicator buffers!");
//---- name for DataWindow and indicator subwindow label
IndicatorShortName("Aroon Up & Dn("+AroonPeriod+")");
//---- initialization done
return(0);
}
//+------------------------------------------------------------------+
//| Aroon Up & Dn |
//+------------------------------------------------------------------+
int start()
{
double AroonUp,AroonDn;
int ArPer,limit,i;
int UpBarDif,DnBarDif;
int counted_bars=IndicatorCounted();
ArPer=AroonPeriod; //Short name
//---- check for possible errors
if(counted_bars<0) return(-1);
if(AroonPeriod<1) return(-1);
//---- initial zero
if(counted_bars<1)
{
for(i=1;i<=ArPer;i++) HighBarBuffer[Bars-i]=0.0;
for(i=1;i<=ArPer;i++) LowBarBuffer[Bars-i]=0.0;
for(i=1;i<=ArPer;i++) AroonUpBuffer[Bars-i]=0.0;
for(i=1;i<=ArPer;i++) AroonDnBuffer[Bars-i]=0.0;
}
//---- last counted bar will be recounted
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
//----Calculation---------------------------
for( i=0; i<limit; i++)
{
HighBarBuffer[i] = Highest(NULL,0,MODE_HIGH,ArPer,i); //Periods from HH
LowBarBuffer[i] = Lowest(NULL,0,MODE_LOW,ArPer,i); //Periods from LL
UpBarDif = i-HighBarBuffer[i]; //Period substraction
DnBarDif = i-LowBarBuffer[i]; //Period substraction
AroonUpBuffer[i]=100+(100/ArPer)*(UpBarDif); //Adjusted Aroon Up
AroonDnBuffer[i]=100+(100/ArPer)*(DnBarDif); //Adjusted Aroon Down
}
return(0);
}
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