//+------------------------------------------------------------------+
//| Price Channel.mq4 |
//| |
//| http://forex.kbpauk.ru/ |
//+------------------------------------------------------------------+
#property link "http://forex.kbpauk.ru/"
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Red
#property indicator_color2 Blue
#property indicator_color3 DodgerBlue
//---- input parameters
extern int ChannelPeriod = 14;
//---- buffers
double UpBuffer[];
double DnBuffer[];
double MdBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- indicator line
SetIndexStyle(0, DRAW_LINE);
SetIndexStyle(1, DRAW_LINE);
SetIndexStyle(2, DRAW_LINE);
SetIndexBuffer(0, UpBuffer);
SetIndexBuffer(1, DnBuffer);
SetIndexBuffer(2, MdBuffer);
//---- name for DataWindow and indicator subwindow label
short_name="Price Channel("+ChannelPeriod+")";
IndicatorShortName(short_name);
SetIndexLabel(0, "UpCh");
SetIndexLabel(1, "DownCh");
SetIndexLabel(2, "MidCh");
//----
SetIndexDrawBegin(0, ChannelPeriod);
SetIndexDrawBegin(1, ChannelPeriod);
SetIndexDrawBegin(2, ChannelPeriod);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Price Channel |
//+------------------------------------------------------------------+
int start()
{
int i, counted_bars = IndicatorCounted();
int k;
double high, low, price;
//----
if(Bars <= ChannelPeriod)
return(0);
//---- initial zero
if(counted_bars < 1)
for(i = 1;i <= ChannelPeriod; i++)
UpBuffer[Bars-i] = 0.0;
//----
i = Bars - ChannelPeriod - 1;
if(counted_bars >= ChannelPeriod)
i = Bars - counted_bars - 1;
while(i >= 0)
{
high = High[i];
low = Low[i];
k = i - 1 + ChannelPeriod;
while(k >= i)
{
price = High[k];
if(high < price)
high = price;
price = Low[k];
if(low > price)
low = price;
k--;
}
UpBuffer[i] = high;
DnBuffer[i] = low;
MdBuffer[i] = (high + low) / 2;
i--;
}
return(0);
}
//+------------------------------------------------------------------+
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
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: