在MT4上，是没有三线KDJ指标的，分享KDJ指标源码：
#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 parametersinput int N =9;//%K 周期input int M1=3;//%D 周期input int M2=3;//慢速//--- indicator buffersdouble 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); }//+------------------------------------------------------------------+ |
|
