Aroon Oscillator

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ArnOsc.efs  EFSLibrary - Discussion Board
  

File Name: ArnOsc.efs


Description:
Aroon Oscillator


Formula Parameters:
Length : 14

Notes:
This formula requires the AroonUp.efs and AroonDown.efs formulas which
must be in the same folder.
Developed by Tushar Chande in 1995, the Aroon is an indicator system
that can be used to determine whether a stock is trending or not and
how strong the trend is. "Aroon" means "Dawn's Early Light" in Sanskrit
and Chande choose that name for this indicator since it is designed to
reveal the beginning of a new trend.
The Aroon indicator consists of two lines, Aroon(up) and Aroon(down).
The Aroon Oscillator is a single line that is defined as the difference
between Aroon(up) and Aroon(down). All three take a single parameter which
is the number of time periods to use in the calculation. Since Aroon(up)
and Aroon(down) both oscillate between 0 and +100, the Aroon Oscillator
ranges from -100 to +100 with zero serving as the crossover line.
Aroon Oscillator indicator is calculated according to this formula:
AroonOscillator = AroonUp - AroonDown

Download File:
ArnOsc.efs
AroonUp.efs
AroonDown.efs





EFS Code:









/*********************************Provided By:      eSignal (Copyright c eSignal), a division of Interactive Data     Corporation. 2009. 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:            Aroon Oscillator    Version:            1.0  05/15/2009    Formula Parameters:                     Default:    Length                              14    Notes:    This formula requires the AroonUp.efs and AroonDown.efs formulas which     must be in the same folder.    Developed by Tushar Chande in 1995, the Aroon is an indicator system     that can be used to determine whether a stock is trending or not and     how strong the trend is. "Aroon" means "Dawn's Early Light" in Sanskrit     and Chande choose that name for this indicator since it is designed to     reveal the beginning of a new trend.    The Aroon indicator consists of two lines, Aroon(up) and Aroon(down).     The Aroon Oscillator is a single line that is defined as the difference     between Aroon(up) and Aroon(down). All three take a single parameter which     is the number of time periods to use in the calculation. Since Aroon(up)     and Aroon(down) both oscillate between 0 and +100, the Aroon Oscillator     ranges from -100 to +100 with zero serving as the crossover line.    Aroon Oscillator indicator is calculated according to this formula:    AroonOscillator = AroonUp - AroonDown**********************************/function preMain() {    setStudyTitle("Aroon Oscillator");    setCursorLabelName("ArnOsc",0);    setDefaultBarFgColor(Color.red,0);    var fp1 = new FunctionParameter("nInputLength", FunctionParameter.NUMBER);        fp1.setName("Length");        fp1.setLowerLimit(1);        fp1.setDefault(14);}var bInit = false;var xArnUp = null;var xArnDn = null;function main(nInputLength){        if (bInit == false) {        xArnUp = efsExternal("AroonUP.efs", nInputLength);        xArnDn = efsExternal("AroonDown.efs", nInputLength);        bInit = true;    }    return (xArnUp.getValue(0) - xArnDn.getValue(0));}