#property indicator_separate_window
#property indicator_buffers 3
#property indicator_color1 Black
#property indicator_color2 Lime
#property indicator_color3 Red
extern int period=10;
double ExtBuffer0[];
double ExtBuffer1[];
double ExtBuffer2[];
int init()
{
SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,2,Red);
SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID,2,Lime);
SetIndexStyle(2,DRAW_HISTOGRAM);
IndicatorDigits(Digits+1);
SetIndexBuffer(0,ExtBuffer0);
SetIndexBuffer(1,ExtBuffer1);
SetIndexBuffer(2,ExtBuffer2);
IndicatorShortName("Fisher");
SetIndexLabel(1,NULL);
SetIndexLabel(2,NULL);
return(0);
}
int start()
{
//int period=10;
int limit;
int counted_bars=IndicatorCounted();
double prev,current,old;
double Value=0,Value1=0,Value2=0,Fish=0,Fish1=0,Fish2=0;
double price;
double MinL=0;
double MaxH=0;
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
for(int i=0; i<limit; i++)
{ MaxH = High[Highest(NULL,0,MODE_HIGH,period,i)];
MinL = Low[Lowest(NULL,0,MODE_LOW,period,i)];
price = (High+Low)/2;
Value = 0.33*2*((price-MinL)/(MaxH-MinL)-0.5) + 0.67*Value1;
Value=MathMin(MathMax(Value,-0.999),0.999);
ExtBuffer0=0.5*MathLog((1+Value)/(1-Value))+0.5*Fish1;
Value1=Value;
Fish1=ExtBuffer0;
}
bool up=true;
for(i=limit-2; i>=0; i--)
{
current=ExtBuffer0;
prev=ExtBuffer0[i+1];
if (((current<0)&&(prev>0))||(current<0)) up= false;
if (((current>0)&&(prev<0))||(current>0)) up= true;
if(!up)
{
ExtBuffer2=current;
ExtBuffer1=0.0;
}
else
{
ExtBuffer1=current;
ExtBuffer2=0.0;
}
}
return(0);
}
ถ้าเป็นสัญญาสี เขียวจะให้ Return ค่าออกมา ครับ และ IndicatorCounted() เมือเป็น EA จะเอาค่าอะไรมาแทน ExtBuffer2[] จำเป็นต้องใส่ไหมครับ
