附图指标， 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 //+------------------------------------------------------------------+ //| EMAAngle.mq4 | //| jpkfox | //| | //| You can use this indicator to measure when the EMA angle is | //| "near zero". AngleTreshold determines when the angle for the | //| EMA is "about zero": This is when the value is between | //| [-AngleTreshold, AngleTreshold] (or when the histogram is red). | //| EMAPeriod: EMA period | //| AngleTreshold: The angle value is "about zero" when it is | //| between the values [-AngleTreshold, AngleTreshold]. | //| StartEMAShift: The starting point to calculate the | //| angle. This is a shift value to the left from the | //| observation point. Should be StartEMAShift > EndEMAShift. | //| StartEMAShift: The ending point to calculate the | //| angle. This is a shift value to the left from the | //| observation point. Should be StartEMAShift > EndEMAShift. | //| | //| Modified by MrPip | //| Red for down | //| Yellow for near zero | //| Green for up | //| 10/15/05 MrPip | //| Corrected problem with USDJPY and optimized code | //| 10/23/05 Added other JPY crosses | //| | //+------------------------------------------------------------------+ #property copyright "jpkfox" #property link "http://www.strategybuilderfx.com/forums/showthread.php?t=15274&page=1&pp=8" //---- indicator settings #property indicator_separate_window #property indicator_buffers 3 #property indicator_color1 LimeGreen #property indicator_color2 Yellow #property indicator_color3 FireBrick //---- indicator parameters extern bool DoAlert = true; extern int EMAPeriod=34; extern double AngleTreshold=0.2; extern int StartEMAShift=6; extern int EndEMAShift=0; //---- indicator buffers double UpBuffer; double DownBuffer; double ZeroBuffer; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { //---- 2 additional buffers are used for counting. IndicatorBuffers(3); //---- drawing settings SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,2); SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID,2); SetIndexStyle(2,DRAW_HISTOGRAM,STYLE_SOLID,2); IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS)+2); //---- 3 indicator buffers mapping if(!SetIndexBuffer(0,UpBuffer) && !SetIndexBuffer(1,DownBuffer) && !SetIndexBuffer(2,ZeroBuffer)) Print("cannot set indicator buffers!"); //---- name for DataWindow and indicator subwindow label IndicatorShortName("EMAAngleZero("+EMAPeriod+","+AngleTreshold+","+StartEMAShift+","+EndEMAShift+")"); //---- initialization done return(0); } //+------------------------------------------------------------------+ //| The angle for EMA | //+------------------------------------------------------------------+ int start() { double fEndMA, fStartMA; double fAngle, mFactor, dFactor; int nLimit, i; int nCountedBars; double angle; int ShiftDif; string Sym; if(EndEMAShift >= StartEMAShift) { Print("Error: EndEMAShift >= StartEMAShift"); StartEMAShift = 6; EndEMAShift = 0; } nCountedBars = IndicatorCounted(); //---- check for possible errors if(nCountedBars<0) return(-1); //---- last counted bar will be recounted if(nCountedBars>0) nCountedBars--; nLimit = Bars-nCountedBars; dFactor = 2*3.14159/180.0; mFactor = 10000.0; Sym = StringSubstr(Symbol(),3,3); if (Sym == "JPY") mFactor = 100.0; ShiftDif = StartEMAShift-EndEMAShift; mFactor /= ShiftDif; //---- main loop for(i=0; i AngleTreshold) { UpBuffer = fAngle; PlaySound("Disconnect.wav"); } else if (fAngle < -AngleTreshold) { DownBuffer = fAngle; PlaySound("Alert.wav"); } else ZeroBuffer = fAngle; } return(0); } //+------------------------------------------------------------------+ EMAAngleZeroAlert.jpg