#property copyright "Copyright 2020"
#property link "https://www.mql5.com"
#property version "1.00"
#property strict
#property indicator_separate_window
#property indicator_buffers 3
#property indicator_plots 3
//--- plot KLine
#property indicator_label1 "KLine"
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrWhite
#property indicator_style1 STYLE_SOLID
#property indicator_width1 1
//--- plot DLine
#property indicator_label2 "DLine"
#property indicator_type2 DRAW_LINE
#property indicator_color2 clrGold
#property indicator_style2 STYLE_SOLID
#property indicator_width2 1
//--- plot JLine
#property indicator_label3 "JLine"
#property indicator_type3 DRAW_LINE
#property indicator_color3 clrDarkViolet
#property indicator_style3 STYLE_SOLID
#property indicator_width3 1
#property indicator_levelstyle STYLE_DOT
#property indicator_levelcolor clrSilver
#property indicator_level1 0
#property indicator_level2 20
#property indicator_level3 50
#property indicator_level4 80
#property indicator_level5 100
//---- input parameters
input int N =9;//%K 周期
input int M1=3;//%D 周期
input int M2=3;//慢速
//--- indicator buffers
double KBuffer;
double DBuffer;
double JBuffer;
double llv,hhv,rsv;
double p=0,p1=0;
double f=0,f1=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
//--- indicator buffers mapping
IndicatorBuffers(6);
SetIndexBuffer(0,KBuffer);
SetIndexBuffer(1,DBuffer);
SetIndexBuffer(2,JBuffer);
SetIndexBuffer(3,llv,INDICATOR_CALCULATIONS);
SetIndexBuffer(4,hhv,INDICATOR_CALCULATIONS);
SetIndexBuffer(5,rsv,INDICATOR_CALCULATIONS);
for(int i=0; i<6; i++)
{
SetIndexDrawBegin(i,N+M1+M2);
}
SetLevelValue(0,0);
SetLevelValue(1,20);
SetLevelValue(2,50);
SetLevelValue(3,80);
SetLevelValue(4,100);
string name = "KDJ("+ (string)N+","+(string)M1+","+(string)M2+")";
IndicatorShortName(name);
IndicatorDigits(2);
if(N<=0||M1<=0||M2<=0)
return(INIT_FAILED);
p = 1.0/M1;
p1 = 1-p;
f = 1.0/M2;
f1 = 1-f;
//---
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
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,limit=0;
if(rates_total<=0)
return(0);
if(prev_calculated<=0)
limit=rates_total-1;
else
limit = rates_total - prev_calculated +1;
for(i=limit; i>=0; i--)
{
llv=0;
hhv=0;
if(i>rates_total-N)
continue;
int shift = iLowest(NULL,0,MODE_LOW,N,i);
llv = low[shift];
shift = iHighest(NULL,0,MODE_HIGH,N,i);
hhv = high[shift];
}
for(i=limit; i>=0; i--)
{ rsv = 0;
if(hhv>0 && llv>0 && (hhv-llv)!=0)
rsv = (close-llv)/(hhv-llv)*100;
}
for(i=limit; i>=0; i--)
{
if(i==rates_total-1)
KBuffer=0;
else {
KBuffer = rsv*p + KBuffer[i+1]*p1; }
}
for(i=limit; i>=0; i--)
{ if(i==rates_total-1)
DBuffer=0;
else
{
DBuffer = KBuffer*f + DBuffer[i+1]*f1;
}
}
for(i=limit; i>=0; i--)
{
JBuffer = 3*KBuffer - 2*DBuffer;
}
//--- return value of prev_calculated for next call
return(rates_total);
}
//+------------------------------------------------------------------+
:handshake :) 谢谢!!
