//+------------------------------------------------------------------+
//| ZeroLag Tema.mq4 |
//| mladen |
//| |
//| original ZeroLag Heiken-ashi Tema and |
//| Zero-lag Typical price Tema for metatrader |
//| developed by Kalenzo |
//| |
//+------------------------------------------------------------------+
#property copyright "www.forex-tsd.com"
#property link "www.forex-tsd.com"
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 SteelBlue
#property indicator_color2 Magenta
#property indicator_width1 2
//
//
//
//
//
#define PRICE_HA 7
extern string _ = "Parameters";
extern int iPerioda = 144;
extern int iPricea = PRICE_TYPICAL;
extern int iPeriodb = 21;
extern int iPriceb = PRICE_HA;
//
//
//
//
//
double buffer1[];
double buffer2[];
double buffer3[];
double buffer4[];
double buffer5[];
double buffer6[];
double buffer7[];
double buffer8[];
string IndicatorFileName;
bool calcTEMA;
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
//
int init()
{
calcTEMA = ( _ == "calculateTEMA" );
IndicatorBuffers(8);
SetIndexBuffer(0,buffer1);
SetIndexBuffer(1,buffer2);
SetIndexBuffer(2,buffer3);
SetIndexBuffer(3,buffer4);
SetIndexBuffer(4,buffer5);
SetIndexBuffer(5,buffer6);
SetIndexBuffer(6,buffer7);
SetIndexBuffer(7,buffer8);
if (calcTEMA) return(0);
//
//
//
//
//
IndicatorShortName("ZeroLag TEMA ("+iPerioda+","+iPeriodb+")");
SetIndexLabel(0,"ZL TEMA "+iPerioda);
SetIndexLabel(1,"ZL TEMA "+iPeriodb);
IndicatorFileName = WindowExpertName();
return(0);
}
int deinit()
{
return(0);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
//
int start()
{
double alphaa = 2.0 / (1.0 + iPerioda);
double alphab = 2.0 / (1.0 + iPeriodb);
int counted_bars = IndicatorCounted();
int i,limit;
if(counted_bars < 0) return(-1);
if(counted_bars > 0) counted_bars--;
limit = Bars-counted_bars;
//
//
//
//
//
if (calcTEMA) { calculateTEMA(limit); return(0);}
//
//
//
//
//
for (i=limit; i>=0; i--)
{
if (iPerioda > 1)
{
double tema1 = iCustom(NULL,0,IndicatorFileName,"calculateTEMA",iPerioda,iPricea,0,i);
buffer8[i] = buffer8[i+1]+alphaa*(tema1 -buffer8[i+1]);
buffer7[i] = buffer7[i+1]+alphaa*(buffer8[i]-buffer7[i+1]);
buffer6[i] = buffer6[i+1]+alphaa*(buffer7[i]-buffer6[i+1]);
buffer1[i] = tema1+(tema1-(3*buffer8[i]-3*buffer7[i]+buffer6[i]));
}
//
//
//
//
//
if (iPeriodb > 1)
{
double tema2 = iCustom(NULL,0,IndicatorFileName,"calculateTEMA",iPeriodb,iPriceb,0,i);
buffer5[i] = buffer5[i+1]+alphab*(tema2 -buffer5[i+1]);
buffer4[i] = buffer4[i+1]+alphab*(buffer5[i]-buffer4[i+1]);
buffer3[i] = buffer3[i+1]+alphab*(buffer4[i]-buffer3[i+1]);
buffer2[i] = tema2+(tema2-(3*buffer5[i]-3*buffer4[i]+buffer3[i]));
}
}
return(0);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
//
void calculateTEMA(int limit)
{
double alpha = 2.0 / (1.0 + iPerioda);
double price;
//
//
//
//
//
for (int i=limit; i>= 0; i--)
{
if (iPricea==PRICE_HA)
{
double haOpen = (buffer7[i+1] + buffer8[i+1]) / 2;
double haClose = (Open[i] + High[i] + Low[i] + Close[i]) / 4;
double haHigh = MathMax(High[i], MathMax(haOpen,haClose));
double haLow = MathMin(Low[i] , MathMin(haOpen,haClose));
if(haOpen <haClose) { buffer5[i] = haLow; buffer6[i] = haHigh; }
else { buffer5[i] = haHigh; buffer6[i] = haLow; }
buffer7[i] = haOpen;
buffer8[i] = haClose;
price = (buffer5[i] + buffer6[i] + buffer7[i] + buffer8[i])/4;
}
//
//
//
//
//
else price = iMA(NULL,0,iPerioda,0,MODE_EMA,iPricea,i);
//
//
//
//
//
buffer4[i] = buffer4[i+1]+alpha*(price -buffer4[i+1]);
buffer3[i] = buffer3[i+1]+alpha*(buffer4[i]-buffer3[i+1]);
buffer2[i] = buffer2[i+1]+alpha*(buffer3[i]-buffer2[i+1]);
buffer1[i] = 3*buffer4[i]-3*buffer3[i]+buffer2[i];
}
}
Sample
image not available
Analysis
Market Information Used:
Series array that contains close prices for each bar
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Series array that contains open prices of each bar
Indicator Curves created:
Indicators Used:
Moving average indicator
Custom Indicators Used:
IndicatorFileName
Order Management characteristics:
Other Features: