i-regr.mq4

用MT4编的一个线性回归的源代码

//----
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 LimeGreen
#property indicator_color2 Gold
#property indicator_color3 Gold


extern int degree = 3;
extern double kstd = 2.0;
extern int bars = 250;
extern int shift = 0;


//-----
double fx[],sqh[],sql[];

double ai[10,10],b[10],x[10],sx[20];
double sum; 
int ip,p,n,f;
double qq,mm,tt;
int ii,jj,kk,ll,nn;
double sq;

int i0 = 0;

/*  
void clear()
{
  int total = ObjectsTotal();  
  for (int i=total-1; i >= 0; i--) 
  {
    string name = ObjectName(i);
    if (StringFind(name, prefix) == 0) ObjectDelete(name);
  }
}
*/

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
{
  SetIndexBuffer(0, fx); // 馏翦瘥 爨耨桠钼 桧滂赅蝾疣
  SetIndexBuffer(1, sqh);
  SetIndexBuffer(2, sql);

  SetIndexStyle(0, DRAW_LINE);
  SetIndexStyle(1, DRAW_LINE);
  SetIndexStyle(2, DRAW_LINE);

  SetIndexEmptyValue(0, 0.0);
  SetIndexEmptyValue(1, 0.0);
  SetIndexEmptyValue(2, 0.0);
  
  SetIndexShift(0, shift);
  SetIndexShift(1, shift);
  SetIndexShift(2, shift);

  return(0);
}

//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
{
  //clear();
  return(0);
}

//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
{
  if (Bars < bars) return;

//---- 
    
  int mi; // 镥疱戾眄