Expert Advisor Programming by Andrew R. Young

EXPERT ADVISOR PROGRAMMING
Appendix E
Custom Indicator
Here is the code for the custom indicator from chapter 9:
#property copyright "Andrew Young"
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 DeepSkyBlue
#property indicator_color2 DeepSkyBlue
#property indicator_color3 DeepSkyBlue
// External variables
extern int BandsPeriod = 20;
extern int BandsShift = 0;
extern int BandsMethod = 1;
extern int BandsPrice = 0;
extern int Deviations = 1;
// Buffers
double EMA[];
double UpperBand[];
double LowerBand[];
// Init
int init()
{
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,EMA);
SetIndexLabel(0,"EMA");
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1,UpperBand);
SetIndexLabel(1,"UpperBand");
SetIndexStyle(2,DRAW_LINE);
SetIndexBuffer(2,LowerBand);
SetIndexLabel(2,"LowerBand");
}
return(0);
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