//+------------------------------------------------------------------+
//| Aroon oscillator.mq4 |
//| mladen |
//+------------------------------------------------------------------+
#property copyright "mladen"
#property link "mladenfx@gmail.com"
#property indicator_separate_window
#property indicator_buffers 7
#property indicator_color1 DimGray
#property indicator_color2 Green
#property indicator_color3 Green
#property indicator_color4 FireBrick
#property indicator_color5 FireBrick
#property indicator_color6 Lime
#property indicator_color7 Red
#property indicator_levelcolor DarkSlateGray
#property indicator_width1 1
#property indicator_width2 2
#property indicator_width3 2
#property indicator_width4 2
#property indicator_width5 2
#property indicator_minimum -100
#property indicator_maximum 100
extern int AroonPeriod = 25;
extern int Filter = 50;
extern string Alerts_Settings = "Settings for alerts";
extern bool alerts.On = false;
extern bool alerts.OnCurrent = false;
extern bool alerts.Message = true;
extern bool alerts.Sound = false;
extern bool alerts.Email = false;
//
//
//
//
//
double buffer1[];
double buffer2[];
double buffer3[];
double buffer4[];
double buffer5[];
double buffer6[];
double buffer7[];
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
//
int init()
{
SetIndexBuffer(0,buffer1);
SetIndexBuffer(1,buffer2);
SetIndexBuffer(2,buffer3);
SetIndexBuffer(3,buffer4);
SetIndexBuffer(4,buffer5);
SetIndexBuffer(5,buffer6); SetIndexStyle(5,DRAW_ARROW); SetIndexArrow(5,108);
SetIndexBuffer(6,buffer7); SetIndexStyle(6,DRAW_ARROW); SetIndexArrow(6,108);
SetLevelValue(0, Filter);
SetLevelValue(1,-Filter);
IndicatorShortName("Aroon oscillator ("+AroonPeriod+")");
return(0);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
//
int start()
{
int counted_bars=IndicatorCounted();
int i,limit;
if(counted_bars<0) return(-1);
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
//
//
//
//
//
if (buffer1[limit] > 50) CleanPoint(limit,buffer2,buffer3);
if (buffer1[limit] < -50) CleanPoint(limit,buffer4,buffer5);
//
//
//
//
//
for(i=limit; i>=0; i--)
{
double AroonUp = 100.0*(AroonPeriod-iHighest(NULL,0,MODE_HIGH,AroonPeriod,i)+i)/AroonPeriod;
double AroonDn = 100.0*(AroonPeriod- iLowest(NULL,0,MODE_LOW ,AroonPeriod,i)+i)/AroonPeriod;
buffer1[i] = AroonUp-AroonDn;
buffer2[i] = EMPTY_VALUE;
buffer3[i] = EMPTY_VALUE;
buffer4[i] = EMPTY_VALUE;
buffer5[i] = EMPTY_VALUE;
buffer6[i] = EMPTY_VALUE;
buffer7[i] = EMPTY_VALUE;
if (buffer1[i]> Filter) PlotPoint(i,buffer2,buffer3,buffer1);
if (buffer1[i]<-Filter) PlotPoint(i,buffer4,buffer5,buffer1);
if (buffer1[i]> Filter && buffer1[i+1]< Filter) buffer6[i]= buffer1[i];
if (buffer1[i]<-Filter && buffer1[i+1]>-Filter) buffer7[i]= buffer1[i];
}
//
//
//
//
//
if (alerts.On)
{
if (alerts.OnCurrent)
int forBar = 0;
else forBar = 1;
//
//
//
//
//
if (buffer6[forBar]!= EMPTY_VALUE) doAlert("Arron oscillator trend chaned to UP");
if (buffer7[forBar]!= EMPTY_VALUE) doAlert("Arron oscillator trend chaned to DOWN");
}
return(0);
}
//+----------------------------------------------------------------------------------+
//| |
//+----------------------------------------------------------------------------------+
//
//
//
//
//
void doAlert(string doWhat)
{
static string previousAlert="nothing";
static datetime previousTime;
string message;
if (previousAlert != doWhat || previousTime != Time[0]) {
previousAlert = doWhat;
previousTime = Time[0];
//
//
//
//
//
message = StringConcatenate(Symbol()," at ",TimeToStr(TimeLocal(),TIME_SECONDS)," Aroon oscillator - ",doWhat);
if (alerts.Message) Alert(message);
if (alerts.Email) SendMail("Arron oscillator",message);
if (alerts.Sound) PlaySound("alert2.wav");
}
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
//
void CleanPoint(int i,double& first[],double& second[])
{
if ((second[i] != EMPTY_VALUE) && (second[i+1] != EMPTY_VALUE))
second[i+1] = EMPTY_VALUE;
else
if ((first[i] != EMPTY_VALUE) && (first[i+1] != EMPTY_VALUE) && (first[i+2] == EMPTY_VALUE))
first[i+1] = EMPTY_VALUE;
}
//
//
//
//
//
void PlotPoint(int i,double& first[],double& second[],double& from[])
{
if (first[i+1] == EMPTY_VALUE)
{
if (first[i+2] == EMPTY_VALUE) {
first[i] = from[i];
first[i+1] = from[i+1];
second[i] = EMPTY_VALUE;
}
else {
second[i] = from[i];
second[i+1] = from[i+1];
first[i] = EMPTY_VALUE;
}
}
else
{
first[i] = from[i];
second[i] = EMPTY_VALUE;
}
}
Sample
Analysis
Market Information Used:
Series array that contains open time of each bar
Indicator Curves created:
Implements a curve of type DRAW_ARROW
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features:
It issuies visual alerts to the screen
It sends emails
It plays sound alerts