主图指标 mt4指标类型：趋势指标 是否能用在mt4手机版上：否 是否含有未来函数：无 //+------------------------------------------------------------------+ //| Ehlers iTrend_in_Color.mq4 | //| Copyright ? 2006, MetaQuotes Software Corp. | //| http://www.metaquotes.net | //+------------------------------------------------------------------+ // new coding attempt below: //Model Ehler's iTrend.mq4, for Metatrader 4, 13 August 2006 // - this custom indicator plots an interesting TREND line // on a chart //this initial 'beta' version appears to 'work' - // but every user should check it out before using it - // this code below may still have unknown bugs? // 'use at your own risk' please post suggestions for // corrections and improvements to this code (.MQ4) // - 'Bill_gigi' on YAHOO 'MetaTrader_Experts_and_Indicators' // Robert Hill modified to be in color on Jan 17, 2007 #property indicator_chart_window #property indicator_buffers 3 #property indicator_color1 Yellow #property indicator_color2 Green #property indicator_color3 Red #property indicator_width1 2 #property indicator_width2 2 #property indicator_width3 2 //---- buffers double ExtMapBuffer1; double ExtMapBuffer2; double ExtMapBuffer3; //---- input parameters extern int Length=10; //---- buffers double TREND; // otherwise called "Model" by Ehlers double iTrend; double Price; double Slope; double HP; //---- Varibles int j, i, n, counted_bars, limit, totalBars; double SMA=0.0, SmoothSlope=0.0, twopi=6.2831853, X=0.0; double Alpha=0.0, SmoothHP=0.0, Prev = 0.0; // Custom indicator initialization function int init() { string short_name; //---- additional buffers used IndicatorBuffers(8); //---- indicator line SetIndexBuffer(2,ExtMapBuffer1); SetIndexBuffer(1,ExtMapBuffer2); SetIndexBuffer(0,ExtMapBuffer3); SetIndexBuffer(3,TREND); SetIndexBuffer(4,iTrend); SetIndexBuffer(5,Price); SetIndexBuffer(6,Slope); SetIndexBuffer(7,HP); SetIndexStyle(2,DRAW_LINE,STYLE_SOLID,2); SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,2); SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,2); //---- name for DataWindow and indicator subwindow label short_name="TREND("+Length+")"; IndicatorShortName(short_name); SetIndexLabel(0,short_name); SetIndexLabel(1,short_name); SetIndexLabel(2,short_name); //---- // SetIndexDrawBegin(0,Length); //---- return(0); } //+------------------------------------------------------------------+ int start() { counted_bars=IndicatorCounted(); totalBars = Bars; //---- if(totalBars<=Length) return(0); Alpha = (1 - MathSin(twopi/Length)) / MathCos(twopi/Length); i=totalBars-counted_bars-1; while(i>=0) { if(i >= (totalBars - Length)) { Price = (High + Low)/2; TREND = 0.0; SMA = 0.0; HP = 0.0; Slope = 0.0; } else { Price = (High + Low)/2; X = 0.0; for(j = Length-1; j > -1; j--) { X = X + Price[i+j]; } SMA = X/Length; // below compute iTrend ~ "instantaneous Trend Line" component of the Model trend Slope = (Price - Price[i + Length - 1])/2.0; SmoothSlope = (Slope + 2.0*Slope[i+1]+ 2.0*Slope [i+2] + Slope[i+3])/6.0; iTrend = (0.5 * SmoothSlope) + SMA; // below is code for the Ehler's 'Cyclic Component' HP = 0.5*(1+Alpha)* (Price - Price[i+1]) + Alpha*HP[i+1]; SmoothHP = (HP + 2.0*HP[i+1] + 2.0*HP[i+2] + HP [i+3])/6.0; } // end of above 'else' condition TREND = MathFloor((iTrend + SmoothHP)/Point)*Point; //========== COLOR CODING =========================================== ExtMapBuffer3 = TREND; //red ExtMapBuffer2 = TREND; //green ExtMapBuffer1 = TREND; //yellow // for(c=loopbegin;c==shift;c++) // { if (TREND[i+1] > TREND) { ExtMapBuffer2 = EMPTY_VALUE; //ExtMapBuffer3[shift+1] = EMPTY_VALUE; //ExtMapBuffer3[shift+1] = EMPTY_VALUE; } else if (TREND[i+1] < TREND) { ExtMapBuffer1 = EMPTY_VALUE; //-1 red/greem tight //ExtMapBuffer3[shift+1] = EMPTY_VALUE; } else { ExtMapBuffer1=EMPTY_VALUE;//EMPTY_VALUE; ExtMapBuffer2=EMPTY_VALUE;//EMPTY_VALUE; } i--; } // end of 'while' loop return(0); } Ehlers_iTrend_in_Color.jpg