Vidya Zone MT4 Indicator最新版

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//| Vidya.mq4 |
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//| Vidya developed by Tushar Chande |
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#property copyright “mladen”
#property link “mladenfx@gmail.com”

#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 clrDeepSkyBlue
#property indicator_color2 clrDimGray
#property indicator_color3 clrDarkOrange
#property indicator_width1 2
#property indicator_width3 2
#property indicator_style2 STYLE_DOT
#property strict

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extern int CmoPeriod = 10; // CMO period
extern int SmoothPeriod = 9; // Smoothing period
extern bool ShowHighLine = true; // Show high line?
extern bool ShowMiddleLine = true; // Show middle line?
extern bool ShowLowLine = true; // Show low line?

double vidya1[],vidya2[],vidya3[];

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int init()
{
SetIndexBuffer(0,vidya1);
SetIndexBuffer(1,vidya2);
SetIndexBuffer(2,vidya3);
return(0);
}
int start()
{
int counted_bars = IndicatorCounted();
if(counted_bars < 0) return(-1);
if(counted_bars > 0) counted_bars–;
int limit = MathMin(Bars-counted_bars,Bars-1);

for(int i=limit; i>=0; i–)
{
double median = (High[i]+Low[i])/2;
if (ShowHighLine) vidya1[i] = iVidya(High[i],median,CmoPeriod,SmoothPeriod,i,0);
if (ShowMiddleLine) vidya2[i] = iVidya(median ,median,CmoPeriod,SmoothPeriod,i,1);
if (ShowLowLine) vidya3[i] = iVidya(Low[i] ,median,CmoPeriod,SmoothPeriod,i,2);
}
return(0);
}

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#define _vidyaInstances 3
#define _vidyaInstancesSize 3
double vidya_work[][_vidyaInstances*_vidyaInstancesSize];
#define vidya_price 0
#define vidya_pricc 1
#define vidya_value 2

double iVidya(double price, double pricc, int cmoPeriods, int smoothPeriod, int r, int instanceNo=0)
{
if (ArrayRange(vidya_work,0)!=Bars) ArrayResize(vidya_work,Bars); r = Bars-r-1; int s = instanceNo*_vidyaInstancesSize;

//
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// using two prices prevents errors when zone indicator is calculated
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vidya_work[r][s+vidya_price] = price;
vidya_work[r][s+vidya_pricc] = pricc;
double sumUp = 0, sumDo = 0;
for (int k=0; k<cmoPeriods && (r-k-1)>=0; k++)
{
double diff = vidya_work[r-k][s+vidya_pricc]-vidya_work[r-k-1][s+vidya_pricc];
if (diff > 0)
sumUp += diff;
else sumDo -= diff;
}
vidya_work[r][s+vidya_value] = (r>0) ? vidya_work[r-1][s+vidya_value]+((((sumUp+sumDo)!=0)?MathAbs((sumUp-sumDo)/(sumUp+sumDo)):1)*2.00/(1.00+MathMax(smoothPeriod,1)))*(vidya_work[r][s+vidya_price]-vidya_work[r-1][s+vidya_value]) : price;
return(vidya_work[r][s+vidya_value]);
}