Tema1

[eSignal]

File Name: TEMA.efs

Description:
TEMA1

Formula Parameters:
Length: 26
Price Data To Use: Close


Notes:
This study plots the TEMA1 indicator. TEMA1 ia s triple MA (Moving Average),
and is calculated as 3*MA - (3*MA(MA)) + (MA(MA(MA)))


Download File:
TEMA.efs



EFS Code:

/*********************************
Provided By:  
    eSignal (Copyright c eSignal), a division of Interactive Data 
    Corporation. 2008. All rights reserved. This sample eSignal 
    Formula Script (EFS) is for educational purposes only and may be 
    modified and saved under a new file name.  eSignal is not responsible
    for the functionality once modified.  eSignal reserves the right 
    to modify and overwrite this EFS file with each new release.


Description:        
    TEMA1 

Version:            1.0  09/24/2008

Notes:
    This study plots the TEMA1 indicator. TEMA1 ia s triple MA (Moving Average),
    and is calculated as 3*MA - (3*MA(MA)) + (MA(MA(MA)))

Formula Parameters:                     Default:
    Length                                  26
    Price Data To Use                      Close

**********************************/

var fpArray = new Array();
var bInit = false;

function preMain() {

    setPriceStudy(true)
    setStudyTitle("TEMA");
    setCursorLabelName("TEMA1", 0);
    setDefaultBarFgColor(Color.blue, 0);
    setPlotType(PLOTTYPE_LINE,0);
    setDefaultBarThickness(1,0);

    var x=0;
    fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setLowerLimit(1);        
        setDefault(26);
    }


    fpArray[x] = new FunctionParameter("Price", FunctionParameter.STRING);
    with(fpArray[x++]){
        setName("Price Data To Use");
        addOption("open"); 
        addOption("high");
        addOption("low");
        addOption("close");
        addOption("hl2");
        addOption("hlc3");
        addOption("ohlc4"); 
        setDefault("close"); 
    }
}


var xMyPrice = null;
var xEMA1 = null;
var xEMA2 = null;
var xEMA3 = null;

function main(Price, Length) {
var nState = getBarState();
var nTEMA = 0;

    if (nState == BARSTATE_ALLBARS) {
        if (Price == null) Price = "close";
        if (Length == null) Length = 26;
    }

   
    if ( bInit == false ) { 
        xMyPrice = eval(Price)();
        xEMA1 = ema(Length, xMyPrice);
        xEMA2 = ema(Length, xEMA1);
        xEMA3 = ema(Length, xEMA2);        
        bInit = true; 
    } 

    if (xEMA1.getValue(0) == null || xEMA2.getValue(0) == null || xEMA3.getValue(0) == null) return;
    
    nTEMA = 3 * xEMA1.getValue(0) - 3 * xEMA2.getValue(0) + xEMA3.getValue(0);

    return nTEMA;
}