//+------------------------------------------------------------------+
//| KDJ.mq4 |
//| senlin ge |
//| http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "senlin ge 20080219"
#property link "mailto:yyy999@people.com.cn"
#property indicator_separate_window
#property indicator_minimum 0
#property indicator_maximum 100
#property indicator_buffers 8
#property indicator_color1 LightSlateGray
#property indicator_color2 0x00ff00
#property indicator_color3 Red
#property indicator_color4 Yellow
#property indicator_color5 0Xffccff
#property indicator_color6 MediumSlateBlue
//---- input parameters
extern int M1=3;
extern int M2=6;
extern int KdjPeriod=30;
//---- buffers
double RsvBuffer[],RSV[],K[],D[],J[],KDC[];
double MaxHigh=0,MinLow=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- name for DataWindow and indicator subwindow label
string short_name;
short_name="KDJ("+KdjPeriod+","+M1+","+M2+") "+"Author:Senlin Ge";
IndicatorShortName(short_name);
SetIndexLabel(0,NULL);
SetIndexLabel(1,"RSV:");
SetIndexLabel(2,"K");
SetIndexLabel(3,"D:");
SetIndexLabel(4,"J");
SetIndexLabel(5,"KDC");
//----
//---- indicators
//---- drawing settings
IndicatorDigits(Digits-2); //setСÊý¾«¶ÈÁ½Î»
//SetIndexStyle(0,DRAW_NONE);
//SetIndexLabel(0,NULL);
SetIndexShift(0,100);
SetIndexStyle(0,DRAW_LINE,2,0);
SetIndexBuffer(0,RsvBuffer);
//----
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1,RSV);
SetIndexStyle(2,DRAW_LINE);
SetIndexBuffer(2,K);
SetIndexStyle(3,DRAW_LINE);
SetIndexBuffer(3,D);
SetIndexStyle(4,DRAW_LINE);
SetIndexBuffer(4,J);
SetIndexStyle(5,DRAW_HISTOGRAM);
SetIndexBuffer(5,KDC);
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int counted_bars=IndicatorCounted();
//----
int i;
if(Bars<=KdjPeriod) return(0);
//----
i=Bars-counted_bars-1;
while(i>=0)
{
MaxHigh=High[iHighest(NULL,0,MODE_HIGH,KdjPeriod,i)];
MinLow=Low[iLowest(NULL,0,MODE_LOW,KdjPeriod,i)];
RSV[i]=(Close[i]-MinLow)/(MaxHigh-MinLow)*100;
if(i/2)
RsvBuffer[i]=50.0;
i--;
}
Ksma(RSV,M1,2); //get K value
Dsma(K,M2,3); //get D value
//---- //
if(counted_bars>0) counted_bars--;
for(i=Bars-counted_bars-1;i>=0;i--)
{
RsvBuffer[i]=50.0;
J[i]=3*K[i]-2*D[i];
if(J[i]<0) J[i]=0;
if(J[i]>100) J[i]=100;
KDC[i]=K[i]-D[i];
}
//----
return(0);
}
//+------------------------------------------------------------------+
//| Simple Moving Average |
//+------------------------------------------------------------------+
double Dsma(double ArrPara[],int MA_Period,int flag)
{
double sum=0;
int ExtCountedBars=IndicatorCounted();
int i,pos=Bars-IndicatorCounted()-1;
//---- initial accumulation
if(pos<MA_Period) pos=MA_Period;
for(i=1;i<MA_Period;i++,pos--)
sum+=K[pos];
//---- main calculation loop
while(pos>=0)
{
sum+=K[pos]; //¼ÓÉÏ×îеÄKÖµ
switch(flag)
{
case 3: D[pos]=sum/MA_Period;break;
}
sum-=K[pos+MA_Period-1];
pos--;
}
}
//+------------------------------------------------------------------+
//| Simple Moving Average |
//+------------------------------------------------------------------+
double Ksma(double ArrPara[],int MA_Period,int flag)
{
double sum=0;
int ExtCountedBars=IndicatorCounted();
int i,pos=Bars-IndicatorCounted()-1;
//---- initial accumulation
if(pos<MA_Period) pos=MA_Period;
for(i=1;i<MA_Period;i++,pos--)
sum+=RSV[pos];
//---- main calculation loop
while(pos>=0)
{
sum+=RSV[pos]; //¼ÓÉÏ×îеÄRSV[]µÄÖµ
switch(flag)
{
case 2: K[pos]=sum/MA_Period;break;
}
sum-=RSV[pos+MA_Period-1];
pos--;
}
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Series array that contains close prices for each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Implements a curve of type DRAW_HISTOGRAM
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: