EMA-Crossover_Signal

Opět indikátor pracující s křížením exponenciálních průměrů (EMA). Nezobrazuje křivky dvou zvolených EMA, ale zobrazuje pouze šipku (signál k nákupu) v případě překřížení.

 

 

//+——————————————————————+
//|                                         EMA-Crossover_Signal.mq4 |
//|         Copyright © 2005, Jason Robinson (jnrtrading)            |
//|                   http://www.jnrtading.co.uk                     |
//+——————————————————————+

/*
+——————————————————————+
| Allows you to enter two ema periods and it will then show you at |
| Which point they crossed over. It is more usful on the shorter   |
| periods that get obscured by the bars / candlesticks and when    |
| the zoom level is out. Also allows you then to remove the emas   |
| from the chart. (emas are initially set at 5 and 6)              |
+——————————————————————+
*/
#property copyright „Copyright © 2005, Jason Robinson (jnrtrading)“
#property link      „http://www.jnrtrading.co.uk“

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Green
#property indicator_color2 Red

double CrossUp[];
double CrossDown[];
double TestLine[];
extern int FasterEMA = 5;
extern int SlowerEMA = 6;
//+——————————————————————+
//| Custom indicator initialization function                         |
//+——————————————————————+
int init()
{
//—- indicators
IndicatorBuffers(3);
SetIndexStyle(0, DRAW_ARROW, 0, 2); //EMPTY);
SetIndexArrow(0, 233);
SetIndexBuffer(0, CrossUp);
SetIndexStyle(1, DRAW_ARROW, 0, 2); //EMPTY);
SetIndexArrow(1, 234);
SetIndexBuffer(1, CrossDown);
SetIndexBuffer(2, TestLine);
//—-
return(0);
}
//+——————————————————————+
//| Custom indicator deinitialization function                       |
//+——————————————————————+
int deinit()
{
//—-

//—-
return(0);
}
//+——————————————————————+
//| Custom indicator iteration function                              |
//+——————————————————————+
int start() {
int limit, i, counter;
double fasterEMAnow, slowerEMAnow, fasterEMAprevious, slowerEMAprevious, fasterEMAafter, slowerEMAafter;
double Range, AvgRange;
int counted_bars=IndicatorCounted();
//—- check for possible errors
if(counted_bars<0) return(-1);
//—- last counted bar will be recounted
if(counted_bars>0) counted_bars–;

limit=Bars-counted_bars;

for(i = 0; i <= limit; i++) {

counter=i;
Range=0;
AvgRange=0;
for (counter=i ;counter<=i+9;counter++)
{
AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
}
Range=AvgRange/10;

fasterEMAnow = iMA(NULL, 0, FasterEMA, 0, MODE_EMA, PRICE_CLOSE, i);
fasterEMAprevious = iMA(NULL, 0, FasterEMA, 0, MODE_EMA, PRICE_CLOSE, i+1);
fasterEMAafter = iMA(NULL, 0, FasterEMA, 0, MODE_EMA, PRICE_CLOSE, i-1);

slowerEMAnow = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i);
slowerEMAprevious = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i+1);
slowerEMAafter = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i-1);

if ((fasterEMAnow > slowerEMAnow) && (fasterEMAprevious < slowerEMAprevious) && (fasterEMAafter > slowerEMAafter)) {
CrossUp[i] = Low[i] – Range*1.5;
}
else if ((fasterEMAnow < slowerEMAnow) && (fasterEMAprevious > slowerEMAprevious) && (fasterEMAafter < slowerEMAafter)) {
CrossDown[i] = High[i] + Range*1.5;
}
}
return(0);
}

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