ok this one looks like it might fit the purpose from looking at it on the chart...
PHP Code:
//+------------------------------------------------------------------+
//| Trend Bands.mq4 |
//| Dwt5 and adoleh2000 |
//| Copyright © 2005, MetaQuotes Software Corp. |
//| http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net"
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
#property indicator_chart_window
#property indicator_buffers 5
#property indicator_color1 Red
#property indicator_color2 Black
#property indicator_color3 Blue
#property indicator_color4 Red
#property indicator_color5 Blue
double upper[], middle1[], middle2, lower[];
double Xup[], Xdown[];
extern int period = 34;
int init()
{
SetIndexStyle(0,DRAW_LINE,EMPTY,2);
SetIndexShift(0,0);
SetIndexDrawBegin(0,0);
SetIndexBuffer(0,upper);
SetIndexStyle(1,DRAW_LINE,EMPTY,2);
SetIndexShift(1,0);
SetIndexDrawBegin(1,0);
SetIndexBuffer(1,middle1);
SetIndexStyle(2,DRAW_LINE,EMPTY,2);
SetIndexShift(2,0);
SetIndexDrawBegin(2,0);
SetIndexBuffer(2,lower);
SetIndexStyle(3,DRAW_ARROW,EMPTY,2);
SetIndexArrow(3, 162);
SetIndexShift(3,0);
SetIndexDrawBegin(3,0);
SetIndexBuffer(3,Xdown);
SetIndexStyle(4,DRAW_ARROW,EMPTY,2);
SetIndexArrow(4, 162);
SetIndexShift(4,0);
SetIndexDrawBegin(4,0);
SetIndexBuffer(4,Xup);
//---- indicators
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//---- TODO: add your code here
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start() {
int limit;
int counted_bars=IndicatorCounted();
if(counted_bars<0) return(-1);
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
double avg;
for(int x=0; x<limit; x++) {
Xdown[x] = 0; Xup[x] = 0;
middle1[x] = iMA(NULL, 0, period, 0, MODE_EMA, PRICE_TYPICAL, x);// drawn line
middle2= iMA(NULL, 0, period, 0, MODE_SMA, PRICE_TYPICAL, x);// only used to calculate outer bands
avg = findAvg(period, x);
upper[x] = middle2 + (3.5*avg);
lower[x] = middle2 - (3.5*avg);
if (MathAbs(upper[x] - High[x]) < 2*Point)
{
Xdown[x] = upper[x];
if (NewBar() && x == 0)
Alert(Symbol()," ",Period()," reach upper edge");
}
if (MathAbs(lower[x] - Low[x]) < 2*Point)
{
Xup[x] = lower[x];
if (NewBar() && x == 0)
Alert(Symbol()," ",Period()," reach lower edge");
}
}
return(0);
}
//+------------------------------------------------------------------+
double findAvg(int period, int shift) {
double sum=0;
for (int x=shift;x<(shift+period);x++) {
sum += High[x]-Low[x];
}
sum = sum/period;
return (sum);
}
bool NewBar()
{
static datetime dt = 0;
if (dt != Time[0])
{
dt = Time[0];
return(true);
}
return(false);
}
which variables are the lines I see on the chart? upper [x] and lower [x]? what ones do I use to embed this in the EA? could I just use the alert lines to modify the EA rather than give alerts?