//+------------------------------------------------------------------+
//| EMA_Trend_Indicator.mq4 |
//| Copyright © 2006, Robert L Hill |
//+------------------------------------------------------------------+
// Uses an idea from david to use EMAs to determine trend
#property copyright "Copyright © 2005, Metaquotes"
#property link "mailto:metaquotes@metaquotes.net"
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Red
#property indicator_color2 Blue
#property indicator_color3 DodgerBlue
#property indicator_color4 Magenta
#property indicator_width1 1
#property indicator_width2 1
#property indicator_width3 1
#property indicator_width4 1
//---- input parameters
extern int FastMAPeriod=21;
extern int SlowMAPeriod=34;
//---- buffers
double fastEMA_HighBuffer[];
double fastEMA_LowBuffer[];
double slowEMA_HighBuffer[];
double slowEMA_LowBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
IndicatorDigits(MarketInfo(Symbol(), MODE_DIGITS) + 1);
//---- indicators
SetIndexStyle(0, DRAW_LINE);
SetIndexBuffer(0, slowEMA_HighBuffer);
SetIndexStyle(1, DRAW_LINE);
SetIndexBuffer(1, slowEMA_LowBuffer);
SetIndexStyle(2, DRAW_LINE);
SetIndexBuffer(2, fastEMA_HighBuffer);
SetIndexStyle(3, DRAW_LINE);
SetIndexBuffer(3, fastEMA_LowBuffer);
SetIndexDrawBegin(0, SlowMAPeriod);
//---- name for DataWindow and indicator subwindow label
IndicatorShortName("MA Trend ");
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int limit;
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(int i = limit; i >= 0; i--)
{
fastEMA_HighBuffer[i] = iMA(NULL, 0, FastMAPeriod, 0, MODE_EMA, PRICE_HIGH, i);
fastEMA_LowBuffer[i] = iMA(NULL, 0, FastMAPeriod, 0, MODE_EMA, PRICE_LOW, i);
slowEMA_HighBuffer[i] = iMA(NULL, 0, SlowMAPeriod, 0, MODE_EMA, PRICE_HIGH, i);
slowEMA_LowBuffer[i] = iMA(NULL, 0, SlowMAPeriod, 0, MODE_EMA, PRICE_LOW, i);
}
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Moving average indicator
Custom Indicators Used:
Order Management characteristics:
Other Features: