//+------------------------------------------------------------------+
//| InstantaneousTrendline.mq4 |
//| |
//| Instantaneous Trendline |
//| |
//| Algorithm taken from book |
//| "Cybernetics Analysis for Stock and Futures" |
//| by John F. Ehlers |
//| |
//| contact@mqlsoft.com |
//| http://www.mqlsoft.com/ |
//| |
//| Recoded by: |
//| "Wylie" dazzle.html@live.com |
//+------------------------------------------------------------------+
#property copyright "Coded by Witold Wozniak"
#property link "www.mqlsoft.com"
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Orange
#property indicator_color2 White
#property indicator_level1 0
extern color Phase1color = White;
extern color Phase2color = Orange;
extern double Alpha = 0.07;
extern bool EnableAlerts = true;
extern bool EnableArrows = true;
extern int ArrowUPsize = 1;
extern int ArrowDNsize = 1;
extern color ArrowUPcolor = White;
extern color ArrowDNcolor = Orange;
double ITrend[],Trigger[],CrossUp[],CrossDn[],Clearance;
int buffers = 0,MinBars = 0,AST;
string Chart;
static datetime AlertX[2];
/*+-------------------------------------------------------------------+
| InstantaneousTrendline Initialization |
+-------------------------------------------------------------------+*/
int init()
{
MinBars = 20;
IndicatorBuffers(4);
IndicatorShortName("Instantaneous Trendline [" + DoubleToStr(Alpha, 2) + "]");
// Index Buffer 0
SetIndexBuffer(0,ITrend);
SetIndexLabel(0,"Instantaneous Trendline");
SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,1,Phase1color);
SetIndexShift(0,0);
SetIndexEmptyValue(0,EMPTY_VALUE);
SetIndexDrawBegin(0,MinBars);
// Index Buffer 1
SetIndexBuffer(1,Trigger);
SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,1,Phase2color);
SetIndexLabel(1,"Trigger");
SetIndexShift(1,0);
SetIndexEmptyValue(1,EMPTY_VALUE);
SetIndexDrawBegin(1,MinBars);
// Index Buffer 2
SetIndexBuffer(2,CrossUp);
SetIndexStyle(2,DRAW_ARROW,STYLE_SOLID,ArrowUPsize,ArrowUPcolor);
SetIndexLabel(2,"ArrowUP");
SetIndexShift(2,0);
SetIndexEmptyValue(2,EMPTY_VALUE);
SetIndexArrow(2,225);
SetIndexDrawBegin(2,MinBars);
// Index Buffer 3
SetIndexBuffer(3,CrossDn);
SetIndexStyle(3,DRAW_ARROW,STYLE_SOLID,ArrowDNsize,ArrowDNcolor);
SetIndexLabel(3,"ArrowDN");
SetIndexShift(3,0);
SetIndexEmptyValue(3,EMPTY_VALUE);
SetIndexArrow(3,226);
SetIndexDrawBegin(3,MinBars);
// The "Clearance" variable below sets the distance from the trendline to the arrows...
// It can be adjusted by the user to their own preference...
switch(Period())
{case PERIOD_M1: Chart = "M1"; Clearance = 0.0003; AST = 59; break;
case PERIOD_M5: Chart = "M5"; Clearance = 0.0007; AST = 259; break;
case PERIOD_M15: Chart = "M15"; Clearance = 0.0011; AST = 899; break;
case PERIOD_M30: Chart = "M30"; Clearance = 0.0018; AST = 1799; break;
case PERIOD_H1: Chart = "H1"; Clearance = 0.0027; AST = 3599; break;
case PERIOD_H4: Chart = "H4"; Clearance = 0.0038; AST = 14399; break;
case PERIOD_D1: Chart = "D1"; Clearance = 0.0070; AST = 86399; break;
case PERIOD_W1: Chart = "W1"; Clearance = 0.0130; AST = 604799; break;
case PERIOD_MN1: Chart = "MN1"; Clearance = 0.0260; AST = 2591999; break;}
return (0);
} // int init()
/*+-------------------------------------------------------------------+
| InstantaneousTrendline Main cycle |
+-------------------------------------------------------------------+*/
int start()
{
if(Bars <= MinBars){return (0);}
int countedBars = IndicatorCounted(),c,limit = Bars - countedBars - 1;
if(countedBars < 0){return (-1);}
if(countedBars > 0){countedBars--;}
for(c = limit; c >= 0; c--)
{ITrend[c] = (Alpha - (Alpha * Alpha * 0.25)) * ((High[c] + Low[c]) * 0.5) +
(0.5 * Alpha * Alpha) * ((High[c+1] + Low[c+1]) * 0.5) -
(Alpha - 0.75 * Alpha * Alpha) * ((High[c+2] + Low[c+2]) * 0.5) +
2.0 * (1.0 - Alpha) * ITrend[c+1] - (1.0 - Alpha) * (1.0 - Alpha) * ITrend[c+2];
if(c > Bars - 8)
{ITrend[c] = (((High[c] + Low[c]) * 0.5) + 2.0 *
((High[c+1] + Low[c+1]) * 0.5) +
((High[c+2] + Low[c+2]) * 0.5)) * 0.25;}
Trigger[c] = 2.0 * ITrend[c] - ITrend[c + 2];
double b0 = Trigger[c],b1 = Trigger[c+1],
r0 = ITrend[c], r1 = ITrend[c+1];
if(EnableArrows)
{if(b0 > r0 && b1 < r1){CrossUp[c] = r0 - Clearance;}else{CrossUp[c] = EMPTY_VALUE;}
if(b0 < r0 && b1 > r1){CrossDn[c] = r0 + Clearance;}else{CrossDn[c] = EMPTY_VALUE;}}
} // for(c = limit; c >= 0; c--)
if(EnableAlerts)
{if(b0 > r0 && b1 < r1)
{sendAlert(0,(getDateTime()+" "+Symbol()+" "+Chart+" InstantaneousTrendline signals up trend crossing."));}
if(b0 < r0 && b1 > r1)
{sendAlert(1,(getDateTime()+" "+Symbol()+" "+Chart+" InstantaneousTrendline signals down trend crossing."));}}
return (0);
} // int start()
/*+-------------------------------------------------------------------+
| End InstantaneousTrendline Main cycle |
+-------------------------------------------------------------------+*/
/*+-------------------------------------------------------------------+
| Wylie's support functions |
+-------------------------------------------------------------------+*/
/*+-------------------------------------------------------------------+
| *** Alert processing function |
+-------------------------------------------------------------------+*/
void sendAlert(int AlertNum,string AlertText)
{
if(TimeCurrent() > AlertX[AlertNum] + AST)
{AlertX[AlertNum] = TimeCurrent();
/* Add a sound file here if you want another form of alert...
The sound file must be located in the MT4 "sounds" file folder
and must be a .wav format file. Also remove the // characters before
the PlaySound instruction. The Alert command and semicolon can
be removed if the user wishes to remove the alert entirely, if favor
of a sound file... or it can be "commented out" just add // before
the alert instruction. */
// PlaySound("titleOFyourSoundfile.wav");
Alert(AlertText);
} // if(TimeCurrent() > AlertX[AlertNum] + AST)
return(0);
} // void sendAlert(int AlertNum,string AlertText)
/*+-------------------------------------------------------------------+
| *** Date/Time display function |
+-------------------------------------------------------------------+*/
string getDateTime()
{
string dsplyDateTime = TimeToStr(TimeCurrent(),TIME_DATE|TIME_SECONDS);
return(dsplyDateTime);
} // string getDateTime()
/*+-------------------------------------------------------------------+
| End Wylie's support functions |
+-------------------------------------------------------------------+*/
Sample
Analysis
Market Information Used:
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Implements a curve of type DRAW_ARROW
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features:
It issuies visual alerts to the screen