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MetaTrader Formulas
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SVE_TEMA_haC TEMA Average on the heikin ashi price
Tema, Triple Exponential Moving Average was first introduced in Stocks & Commodities magazine February 1994 by Patrick Mulloy. Price is passed multiple times through the same filter and than combined.
TEMA = 3*EMA – 3*EMA(EMA) + EMA(EMA(EMA))
If you are looking for a better smoothing, but still with little lag using longer time periods, then the TEMA average on the heikin ashi price is for you. The blue curve in the chart is a 50-period TEMA average on the heikin ashi price, using 1 hour bars. You must include the "SVE_haC" function to calculate this indicator.
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For MetaTrader4 you can use the following custom formula (SVE_TEMA_haC.mq4):
| //+------------------------------------------------------------------+ //| SVE_TEMA_haC.mq4 | //| Copyright © 2010, Sylvain Vervoort | //| http://stocata.org/ | //+------------------------------------------------------------------+ //+------------------------------------------------------------------+ //| A TEMA average indicator on the heikin ashi average closing price| //| You must have the indicator SVE_haC already installed | //+------------------------------------------------------------------+ #property copyright "Copyright © 2010, Sylvain Vervoort" #property link "http://stocata.org/" #property indicator_chart_window #property indicator_buffers 1 #property indicator_color1 Blue #property indicator_width1 1 //---- input parameters extern int EMA_period=20; //---- buffers double TemaBuffer[]; double Ema1[]; double Ema2[]; double Ema3[]; double TEMA1[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { //---- indicators IndicatorBuffers(5); SetIndexStyle(0,DRAW_LINE); SetIndexBuffer(0,TemaBuffer); SetIndexBuffer(1,Ema1); SetIndexBuffer(2,Ema2); SetIndexBuffer(3,Ema3); SetIndexBuffer(4,TEMA1); IndicatorShortName("TEMA_haC("+EMA_period+")"); return(0); } //+------------------------------------------------------------------+ //| Custom indicator de-initialization function | //+------------------------------------------------------------------+ int deinit() { //---- return(0); } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ int start() { int i,limit,counted_bars=IndicatorCounted(); //---- if (counted_bars==0) { limit=Bars-1; } if (counted_bars>0) { limit=Bars-counted_bars-1; } for (i=limit;i>=0;i--) TEMA1[i]=iCustom(NULL,0,"SVE_haC",0,i); for (i=limit;i>=0;i--) Ema1[i]=iMAOnArray(TEMA1,0,EMA_period,0,MODE_EMA,i); for (i=limit;i>=0;i--) Ema2[i]=iMAOnArray(Ema1,0,EMA_period,0,MODE_EMA,i); for (i=limit;i>=0;i--) Ema3[i]=iMAOnArray(Ema2,0,EMA_period,0,MODE_EMA,i); for (i=limit;i>=0;i--) TemaBuffer[i]=3*Ema1[i]-3*Ema2[i]+Ema3[i]; //---- return(0); } //+-------------------------------------------------------------------------+ |
If you create this indicator in MetaTrader, make sure you give it the name "SVE_TEMA_haC", because we will call this function by this name from other indicators that we will present further on. Please make sure you have already the indicator "SVE_haC" installed. Otherwise this indicator will not work.
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