求高手编写mt5的三线kdj指标，非常感谢~

[guowei_it]

求高手编写mt5的三线kdj指标，非常感谢~

[Xiangdong Guo]

guowei_it:
求高手编写mt5的三线kdj指标，非常感谢~

搜索大法，关键字：kdj

[garlingchan]

Xiangdong Guo:

搜索大法，关键字：kdj

已经百度过，唯一能找到的只有mt4版本

[Peng Jin]

#property copyright "2009-2017, MetaQuotes Software Corp."

#property link      "http://www.mql5.com"

//--- indicator settings

#property indicator_separate_window

#property indicator_buffers 5

#property indicator_plots   3

#property indicator_type1   DRAW_LINE

#property indicator_type2   DRAW_LINE

#property indicator_type3   DRAW_LINE

#property indicator_color1  LightSeaGreen

#property indicator_color2  Red

#property indicator_color3  White

//--- input parameters

input int InpKPeriod=5;  // K period

input int InpDPeriod=3;  // D period

input int InpSlowing=3;  // Slowing

//--- indicator buffers

double    ExtMainBuffer[];

double    ExtSignalBuffer[];

double    J[];

double    ExtHighesBuffer[];

double    ExtLowesBuffer[];

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

void OnInit()

  {

//--- indicator buffers mapping

   SetIndexBuffer(0,ExtMainBuffer,INDICATOR_DATA);

   SetIndexBuffer(1,ExtSignalBuffer,INDICATOR_DATA);

   SetIndexBuffer(2,J,INDICATOR_DATA);

   SetIndexBuffer(3,ExtHighesBuffer,INDICATOR_CALCULATIONS);

   SetIndexBuffer(4,ExtLowesBuffer,INDICATOR_CALCULATIONS);

   

//--- set accuracy

   IndicatorSetInteger(INDICATOR_DIGITS,2);

//--- set levels

   IndicatorSetInteger(INDICATOR_LEVELS,2);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,0,20);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,1,80);

//--- set maximum and minimum for subwindow 

   IndicatorSetDouble(INDICATOR_MINIMUM,0);

   IndicatorSetDouble(INDICATOR_MAXIMUM,100);

//--- name for DataWindow and indicator subwindow label

   IndicatorSetString(INDICATOR_SHORTNAME,"Stoch("+(string)InpKPeriod+","+(string)InpDPeriod+","+(string)InpSlowing+")");

   PlotIndexSetString(0,PLOT_LABEL,"Main");

   PlotIndexSetString(1,PLOT_LABEL,"Signal");

   PlotIndexSetString(2,PLOT_LABEL,"j");

//--- sets first bar from what index will be drawn

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,InpKPeriod+InpSlowing-2);

   PlotIndexSetInteger(1,PLOT_DRAW_BEGIN,InpKPeriod+InpDPeriod);

   PlotIndexSetInteger(2,PLOT_DRAW_BEGIN,InpKPeriod+InpDPeriod);

//--- initialization done

  }

//+------------------------------------------------------------------+

//| Stochastic Oscillator                                            |

//+------------------------------------------------------------------+

int OnCalculate(const int rates_total,

                const int prev_calculated,

                const datetime &time[],

                const double &open[],

                const double &high[],

                const double &low[],

                const double &close[],

                const long &tick_volume[],

                const long &volume[],

                const int &spread[])

  {

   int i,k,start;

//--- check for bars count

   if(rates_total<=InpKPeriod+InpDPeriod+InpSlowing)

      return(0);

//---

   start=InpKPeriod-1;

   if(start+1<prev_calculated) start=prev_calculated-2;

   else

     {

      for(i=0;i<start;i++)

        {

         ExtLowesBuffer[i]=0.0;

         ExtHighesBuffer[i]=0.0;

        }

     }

//--- calculate HighesBuffer[] and ExtHighesBuffer[]

   for(i=start;i<rates_total && !IsStopped();i++)

     {

      double dmin=1000000.0;

      double dmax=-1000000.0;

      for(k=i-InpKPeriod+1;k<=i;k++)

        {

         if(dmin>low[k])  dmin=low[k];

         if(dmax<high[k]) dmax=high[k];

        }

      ExtLowesBuffer[i]=dmin;

      ExtHighesBuffer[i]=dmax;

     }

//--- %K

   start=InpKPeriod-1+InpSlowing-1;

   if(start+1<prev_calculated) start=prev_calculated-2;

   else

     {

      for(i=0;i<start;i++) ExtMainBuffer[i]=0.0;

     }

//--- main cycle

   for(i=start;i<rates_total && !IsStopped();i++)

     {

      double sumlow=0.0;

      double sumhigh=0.0;

      for(k=(i-InpSlowing+1);k<=i;k++)

        {

         sumlow +=(close[k]-ExtLowesBuffer[k]);

         sumhigh+=(ExtHighesBuffer[k]-ExtLowesBuffer[k]);

        }

      if(sumhigh==0.0) ExtMainBuffer[i]=100.0;

      else             ExtMainBuffer[i]=sumlow/sumhigh*100;

     }

//--- signal

   start=InpDPeriod-1;

   if(start+1<prev_calculated) start=prev_calculated-2;

   else

     {

      for(i=0;i<start;i++) ExtSignalBuffer[i]=0.0;

     }

   for(i=start;i<rates_total && !IsStopped();i++)

     {

      double sum=0.0;

      for(k=0;k<InpDPeriod;k++) sum+=ExtMainBuffer[i-k];

      ExtSignalBuffer[i]=sum/InpDPeriod;

      J[i]=3*ExtMainBuffer[i]-2*ExtSignalBuffer[i];

     }

//--- OnCalculate done. Return new prev_calculated.

   return(rates_total);

  }